New command -read_speed

xorriso/base_obj.c

@@ -227,7 +227,8 @@ int Xorriso_new(struct XorrisO ** xorriso,char *progname, int flag)
  m->ban_stdio_write= 0;
  m->do_dummy= 0;
  m->do_close= 0;
- m->speed= 0;
+ m->write_speed= 0;  /* max */
+ m->read_speed= -2;  /* do not set */
  m->fs= 4*512; /* 4 MiB */
  m->padding= 300*1024;
  m->do_padding_by_libisofs= 0;

xorriso/drive_mgt.c

@@ -529,7 +529,8 @@ int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, char *show_adr,
    if(ret <= 0)
      goto ex;
  }
-
+ if(xorriso->read_speed != -2)
+   burn_drive_set_speed(drive, xorriso->read_speed, 0);
  read_ret= ret= isoburn_read_image(drive, ropts, &volset);
 
  /* <<< Resetting to normal thresholds */
@@ -1592,12 +1593,15 @@ int Xorriso_choose_speed_factor(struct XorrisO *xorriso,
 }
 
 
-/* @return <=0 error, 1 success
+/* @flag bit0= do not issue TOC
+         bit1= Report about outdev (else indev)
+         bit2= Report about write speed (else read speed)
+   @return <=0 error, 1 success
 */
-int Xorriso_list_speeds(struct XorrisO *xorriso, int flag)
+int Xorriso_list_speeds_sub(struct XorrisO *xorriso, int flag)
 {
- int ret, high= -1, low= 0x7fffffff, is_cd= 0, i;
- int recent_profile= 0;
+ int ret, high= -1, low= 0x7fffffff, is_cd= 0, i, speed;
+ int recent_profile= 0, inout_flag;
  char *respt, *speed_unit= "D";
  double speed_factor= 1385000.0, cd_factor= 75.0 * 2352;
  struct burn_drive_info *dinfo;
@@ -1606,8 +1610,14 @@ int Xorriso_list_speeds(struct XorrisO *xorriso, int flag)
 
  respt= xorriso->result_line;
 
+ inout_flag= (flag & 2);
+ if(inout_flag && xorriso->out_drive_handle == NULL)
+   inout_flag= 0;
+ else if(xorriso->in_drive_handle == NULL)
+   inout_flag= 2;
  ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
-                         "on attempt to obtain speed descriptor list", 1 | 2);
+                                "on attempt to obtain speed descriptor list",
+                                1 | inout_flag);
  if(ret<=0)
    return(0);
  if(ret == 2)
@@ -1618,18 +1628,21 @@ int Xorriso_list_speeds(struct XorrisO *xorriso, int flag)
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
    ret= 0; goto ex;
  }
- ret= Xorriso_toc(xorriso, 3);
- if(ret<=0) {
-   sprintf(xorriso->info_text,
-           "Cannot obtain overview of drive and media content");
-   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
-   ret= 0; goto ex;
+ if(!(flag & 1)) {
+   ret= Xorriso_toc(xorriso, 1 | inout_flag);
+   if(ret<=0) {
+     sprintf(xorriso->info_text,
+             "Cannot obtain overview of drive and media content");
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
+     ret= 0; goto ex;
+   }
  }
 
  for (item= speed_list; item != NULL; item= item->next) {
 
-   sprintf(xorriso->info_text, "speed= %5dk , source= %d",
-           item->write_speed, item->source);
+   sprintf(xorriso->info_text,
+           "read_speed= %5dk , write_speed= %5dk , source= %d",
+           item->read_speed, item->write_speed, item->source);
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "DEBUG", 0);
 
    if(item->profile_loaded >= 0x08 && item->profile_loaded <= 0x0a)
@@ -1638,29 +1651,35 @@ int Xorriso_list_speeds(struct XorrisO *xorriso, int flag)
      recent_profile= item->profile_loaded;
    if(item->source == 1) {
      /* CD mode page 2Ah : report only if not same speed by GET PERFORMANCE */
+     if(!(flag & 4))
+   continue; /* 2Ah only tells write speed */
      for(other= speed_list; other != NULL; other= other->next)
        if(other->source == 2 && item->write_speed == other->write_speed)
      break;
      if(other != NULL)
  continue;
    }
-   Xorriso_choose_speed_factor(xorriso, item->write_speed,
+   if(flag & 4) {
+     sprintf(respt, "Write speed  : ");
+     speed= item->write_speed;
+   } else {
+     sprintf(respt, "Read speed   : ");
+     speed= item->read_speed;
+   }
+   Xorriso_choose_speed_factor(xorriso, speed,
                                item->profile_loaded,
                                &speed_factor, &speed_unit, 0);
-   sprintf(respt, "Write speed  : ");
    sprintf(respt + strlen(respt), " %5dk , %4.1fx%s\n",
-           item->write_speed,
-           ((double) item->write_speed) * 1000.0 / speed_factor,
-           speed_unit);
+           speed, ((double) speed) * 1000.0 / speed_factor, speed_unit);
    Xorriso_result(xorriso,0);
-   if(item->write_speed > high)
-     high= item->write_speed;
-   if(item->write_speed < low)
-     low= item->write_speed;
+   if(speed > high)
+     high= speed;
+   if(speed < low)
+     low= speed;
  }
 
- /* Maybe there is ATIP info */
- if(is_cd) {
+ /* Maybe there is ATIP info (about write speed only) */
+ if(is_cd && (flag & 4)) {
    ret= burn_disc_read_atip(drive);
    if(ret < 0)
      goto ex;
@@ -1692,18 +1711,24 @@ int Xorriso_list_speeds(struct XorrisO *xorriso, int flag)
  if(high > -1) {
    Xorriso_choose_speed_factor(xorriso, low, recent_profile,
                                &speed_factor, &speed_unit, 0);
-   sprintf(respt, "Write speed L: ");
+   if(flag & 4)
+     sprintf(respt, "Write speed L: ");
+   else
+     sprintf(respt, "Read speed L : ");
    sprintf(respt + strlen(respt), " %5dk , %4.1fx%s\n",
            low, ((double) low) * 1000.0 / speed_factor, speed_unit);
    Xorriso_result(xorriso,0);
    Xorriso_choose_speed_factor(xorriso, low, recent_profile,
                                &speed_factor, &speed_unit, 0);
-   sprintf(respt, "Write speed H: ");
+   if(flag & 4)
+     sprintf(respt, "Write speed H: ");
+   else
+     sprintf(respt, "Read speed H : ");
    sprintf(respt + strlen(respt), " %5dk , %4.1fx%s\n",
            high, ((double) high) * 1000.0 / speed_factor, speed_unit);
    Xorriso_result(xorriso,0);
    ret= burn_drive_get_best_speed(drive, 0, &item, 2);
-   if(ret > 0 && item != NULL)
+   if(ret > 0 && item != NULL && (flag & 4))
      if(item->write_speed != high) {
        sprintf(respt, "Write speed 0:  %5dk , %4.1fx%s\n",
                item->write_speed,
@@ -1712,7 +1737,8 @@ int Xorriso_list_speeds(struct XorrisO *xorriso, int flag)
      }
  } else {
    sprintf(xorriso->info_text,
-           "Could not get any write speed information from drive");
+           "Could not get any %s speed information from drive",
+           (flag & 4) ? "write" : "read");
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
    ret= 0; goto ex;
  }
@@ -1724,6 +1750,35 @@ ex:;
 }
 
 
+int Xorriso_list_speeds(struct XorrisO *xorriso, int flag)
+{
+ int ret;
+
+ if(xorriso->out_drive_handle == NULL && xorriso->in_drive_handle == NULL) {
+   Xorriso_msgs_submit(xorriso, 0,
+                "No drive aquired on attempt to list speeds", 0, "FAILURE", 0);
+   return(0);
+ }
+ if(xorriso->in_drive_handle != NULL) {
+   ret= Xorriso_list_speeds_sub(xorriso, 0);
+   if(ret <= 0)
+     return(ret);
+ }
+ if(xorriso->out_drive_handle != NULL &&
+    xorriso->out_drive_handle != xorriso->in_drive_handle) {
+   ret= Xorriso_list_speeds_sub(xorriso, 2);
+   if(ret <= 0)
+     return(ret);
+ }
+ if(xorriso->out_drive_handle != NULL) {
+   ret= Xorriso_list_speeds_sub(xorriso, 1 | 2 | 4);
+   if(ret <= 0)
+     return(ret);
+ }
+ return(1);
+}
+
+
 /* @param flag bit0= cdrecord style
                bit1= obtain outdrive, else indrive
    @return <=0 error, 1 success
@@ -2088,6 +2143,9 @@ int Xorriso_check_md5_range(struct XorrisO *xorriso, off_t start_lba,
    Xorriso_no_malloc_memory(xorriso, NULL, 0);
    goto ex;
  }
+ if(xorriso->read_speed != -2)
+   burn_drive_set_speed(drive, xorriso->read_speed, 0);
+ Xorriso_process_msg_queues(xorriso,0);
  for(pos= start_lba; pos < end_lba; pos+= 32) {
    to_read= 32;
    if(pos + to_read > end_lba)
@@ -2607,6 +2665,9 @@ int Xorriso_check_interval(struct XorrisO *xorriso, struct SpotlisT *spotlist,
      goto ex;
  }
 
+ if(xorriso->read_speed != -2)
+   burn_drive_set_speed(drive, xorriso->read_speed, 0);
+ Xorriso_process_msg_queues(xorriso,0);
  start_lba= from_lba;
  to_read= read_chunk;
  post_read_time= Sfile_microtime(0);

xorriso/opts_d_h.c

@@ -1533,6 +1533,9 @@ int Xorriso_option_help(struct XorrisO *xorriso, int flag)
 "                 those lists empty. Defaulty entry in \"risky\" is \"/dev\".",
 "  -grow_blindly \"off\"|predicted_nwa",
 "                 Switch between modifying and blind growing.",
+"  -read_speed number[\"k/s\"|\"m/s\"|\"[x]CD\"|\"[x]DVD\"|\"[x]BD\"]",
+"                 Set the read speed. Default is \"none\" = do not set speed",
+"                 before reading.",
 "  -load \"session\"|\"track\"|\"lba\"|\"sbsector\"|\"volid\"|\"auto\" id",
 "                 Load a particular (outdated) ISO image from a -dev or",
 "                 -indev which hosts more than one session.",
@@ -1904,7 +1907,7 @@ int Xorriso_option_help(struct XorrisO *xorriso, int flag)
 "  -dummy \"on\"|\"off\"",
 "                 If \"on\" simulate burning. Refuse if medium cannot simulate.",
 "  -speed number[\"k/s\"|\"m/s\"|\"[x]CD\"|\"[x]DVD\"|\"[x]BD\"]",
-"                 Set the burn speed. Default is 0 = maximum speed.",
+"                 Set the burn speed. Default is \"max\" = maximum speed.",
 "  -stream_recording \"on\"|\"off\"",
 "                 Try to circumvent slow checkread on DVD-RAM, BD-RE, BD-R.",
 "  -dvd_obs \"default\"|\"32k\"|\"64k\"",

xorriso/opts_p_z.c

@@ -1318,19 +1318,34 @@ int Xorriso_option_sleep(struct XorrisO *xorriso, char *duration, int flag)
 }
 
 
-/* Option -speed */
+/* Commands -speed , -read_speed */
+/* @param flag bit0= -read_speed rather than -speed
+*/
 int Xorriso_option_speed(struct XorrisO *xorriso, char *speed, int flag)
 {
- int is_cd= 1, unit_found= 0, ret, profile_number;
- double num;
+ int is_cd= 1, unit_found= 0, ret, profile_number, intspeed= 1;
+ double num= -2.0;
  char *cpt, profile_name[80];
 
- if(speed[0]==0 || strcmp(speed, "any")==0) {
-   xorriso->speed= 0; /* full speed */
+ if(speed[0] == 0 || strcmp(speed, "any") == 0 || strcmp(speed, "max") == 0) {
+   intspeed= 0;
+ } else if(strcmp(speed, "min") == 0) {
+   intspeed= -1;
+ } else if(strcmp(speed, "none") == 0) {
+   intspeed= -2;
+ } else {
+   sscanf(speed,"%lf",&num);
+   if(num <= 0)
+     intspeed= num;
+ }
+ if(intspeed <= 0) {
+   if(flag & 1)
+     xorriso->read_speed= intspeed;
+   else
+     xorriso->write_speed= intspeed;
    return(1);
  }
 
- sscanf(speed,"%lf",&num);
  for(cpt= speed+strlen(speed)-1; cpt>=speed; cpt--)
    if(isdigit(*cpt) || *cpt=='.')
  break;
@@ -1357,7 +1372,8 @@ dvd_speed:;
 bd_speed:;
    num*= 4495.625;
  } else {
-   ret= Xorriso_get_profile(xorriso, &profile_number, profile_name, 2);
+   ret= Xorriso_get_profile(xorriso, &profile_number, profile_name,
+                            2 * !(flag & 1));
    is_cd= (ret==2);
    if(is_cd)
      goto cd_speed;
@@ -1373,9 +1389,13 @@ bd_speed:;
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
    return(0);
  }
- xorriso->speed= num;
- if(xorriso->speed<num)
-   xorriso->speed++;
+ intspeed= num;
+ if(intspeed < num)
+   intspeed++;
+ if(flag & 1)
+   xorriso->read_speed= intspeed;
+ else
+   xorriso->write_speed= intspeed;
  return(1);
 }
 

xorriso/parse_exec.c

@@ -515,7 +515,7 @@ int Xorriso_count_args(struct XorrisO *xorriso, int argc, char **argv,
     "pacifier","padding","path_list","pathspecs","pkt_output",
     "preparer_id","print","print_info","print_mark","prompt",
     "prog","prog_help","publisher","quoted_not_list","quoted_path_list",
-    "reassure","report_about","rockridge",
+    "read_speed","reassure","report_about","rockridge",
     "rom_toc_scan","rr_reloc_dir","scsi_log",
     "session_log","sh_style_result","signal_handling","sleep",
     "speed","split_size","status","status_history_max",
@@ -649,7 +649,8 @@ int Xorriso_cmd_sorting_rank(struct XorrisO *xorriso,
    "mount_opts", "mount_cmd", "session_string",
 
    "* Influencing the behavior of image loading:",
-   "load", "displacement", "drive_class", "assert_volid", "in_charset",
+   "read_speed", "load", "displacement",
+   "drive_class", "assert_volid", "in_charset",
    "auto_charset", "hardlinks", "acl", "xattr", "md5", "for_backup",
    "disk_dev_ino", "rom_toc_scan", "calm_drive", "ban_stdio_write",
    "early_stdio_test", "data_cache_size",
@@ -1611,6 +1612,10 @@ next_command:;
  } else if(strcmp(cmd,"read_mkisofsrc")==0) {
    ret= Xorriso_option_read_mkisofsrc(xorriso, 0);
 
+ } else if(strcmp(cmd,"read_speed")==0) {
+   (*idx)++;
+   ret= Xorriso_option_speed(xorriso, arg1, 1);
+
  } else if(strcmp(cmd,"reassure")==0) {
    (*idx)++;
    ret= Xorriso_option_reassure(xorriso, arg1, 0);

xorriso/text_io.c

@@ -2439,6 +2439,25 @@ int Xorriso_boot_status_sysarea(struct XorrisO *xorriso, char *filter,
 }
 
 
+static char *Xorriso__speedname(int speed)
+{
+ static char name[64];
+
+ if(speed > 0) {
+   sprintf(name, "%dkB/s", speed);
+   return(name);
+ } else if(speed == 0) {
+   return("max");
+ } else if(speed == -1) {
+   return("min");
+ } else if(speed == -2) {
+   return("none");
+ }
+ sprintf(name, "%d", speed);
+ return(name);
+}
+
+
 int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
 /*
  bit0= do only report non-default settings
@@ -3042,8 +3061,8 @@ int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
  if(!(is_default && no_defaults))
    Xorriso_status_result(xorriso,filter,fp,flag&2);
 
- is_default= (xorriso->speed==0);
- sprintf(line,"-speed %dkB/s\n", xorriso->speed);
+ is_default= (xorriso->write_speed==0);
+ sprintf(line,"-speed %s\n", Xorriso__speedname(xorriso->write_speed));
  if(!(is_default && no_defaults))
    Xorriso_status_result(xorriso,filter,fp,flag&2);
 
@@ -3360,6 +3379,11 @@ int Xorriso_status(struct XorrisO *xorriso, char *filter, FILE *fp, int flag)
    }
  }
 
+ is_default= (xorriso->read_speed == -2);
+ sprintf(line,"-read_speed %s\n", Xorriso__speedname(xorriso->read_speed));
+ if(!(is_default && no_defaults))
+   Xorriso_status_result(xorriso,filter,fp,flag&2);
+
  do_single= 0;
  dev_filter= filter;
  if(dev_filter != NULL) {

xorriso/write_run.c

@@ -129,7 +129,8 @@ int Xorriso_make_write_options(
  drive_role= burn_drive_get_drive_role(drive);
  burn_write_opts_set_multi(*burn_options,
                        !(xorriso->do_close || drive_role==0 || drive_role==3));
- burn_drive_set_speed(drive, xorriso->speed, xorriso->speed);
+ if(xorriso->write_speed != -2)
+   burn_drive_set_speed(drive, 0, xorriso->write_speed);
  if(xorriso->do_stream_recording == 1)
    stream_mode= 1;
  else if(xorriso->do_stream_recording == 2)

xorriso/xorriso.1

@@ -9,7 +9,7 @@
 .\" First parameter, NAME, should be all caps
 .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 .\" other parameters are allowed: see man(7), man(1)
-.TH XORRISO 1 "Version 1.3.3, Sep 07, 2013"
+.TH XORRISO 1 "Version 1.3.3, Oct 08, 2013"
 .\" Please adjust this date whenever revising the manpage.
 .\"
 .\" Some roff macros, for reference:
@@ -692,6 +692,38 @@ The following commands should normally be performed before loading an image
 by acquiring an input drive. In rare cases it is desirable to activate
 them only after image loading.
 .TP
+\fB\-read_speed\fR code|number[k|m|c|d|b]
+Set the speed for reading. Default is "none", which avoids to send a speed
+setting command to the drive before reading begins.
+.br
+Further special speed codes are:
+.br
+"max" (or "0") selects maximum speed as announced by the drive.
+.br
+"min" (or "\-1") selects minimum speed as announced by the drive.
+.br
+Speed can be given in media dependent numbers or as a
+desired throughput per second in MMC compliant kB (= 1000)
+or MB (= 1000 kB). Media x\-speed factor can be set explicity
+by "c" for CD, "d" for DVD, "b" for BD, "x" is optional.
+.br
+Example speeds:
+.br
+ 706k = 706kB/s = 4c = 4xCD
+.br
+ 5540k = 5540kB/s = 4d = 4xDVD
+.br
+If there is no hint about the speed unit attached, then the
+medium in the \-indev will decide. Default unit is CD = 176.4k.
+.br
+MMC drives usually activate their own idea of speed and take
+the speed value given by the burn program only as upper limit
+for their own decision.
+.br
+Depending on the drive, the reported read speeds can be deceivingly low.
+Often it is possible to achieve higher read speeds by bold values
+like "20xDVD" or "16xBD".
+.TP
 \fB\-load\fR entity id
 Load a particular (possibly outdated) ISO session from \-dev or \-indev.
 Usually all available sessions are shown with command \-toc.
@@ -2291,8 +2323,11 @@ MMC format codes are manifold. Most important are:
 Smaller format size with DVD\-RAM, BD\-RE, or BD\-R means more reserve space.
 .TP
 \fB\-list_speeds\fR
-Put out a list of speed values as reported by the output drive with
-the loaded medium. This does not necessarily mean that the medium is writable
+Put out a list of speed values as reported by the drives with the loaded
+media. The list tells read speeds of the input drive and of the output
+drive. Further it tells write speeds of the output drive.
+.br
+The list of write speeds does not necessarily mean that the medium is writable
 or that these speeds are actually achievable. Especially the
 lists reported with empty drive or with ROM media obviously advertise
 speeds for other media.
@@ -2302,13 +2337,16 @@ The drive is supposed to choose a safe speed that is as near to the desired
 speed as possible.
 .br
 At the end of the list, "Write speed L" and "Write speed H"
-are the best guesses for lower and upper speed limit.
+are the best guesses for lower and upper write speed limit.
 "Write speed l" and "Write speed h" may appear only with CD
 and eventually override the list of other speed offers.
 .br
 Only if the drive reports contradicting speed information there will appear
 "Write speed 0", which tells the outcome of speed selection by command
 \-speed 0, if it deviates from "Write speed H".
+.br
+"Read speed L" and "Read speed H" tell the minimum and maximum read speeds,
+as would be chosen by \-read_speed "min" resp. "max".
 .TP
 \fB\-close_damaged\fR "as_needed"|"force"
 Try to close the upcomming track and session if the drive reported the medium
@@ -2665,8 +2703,16 @@ mkzftree.
 .br
  "default" same as "level=6:block_size=32k:by_magic=off"
 .TP
-\fB\-speed\fR number[k|m|c|d|b]
-Set the burn speed. Default is 0 = maximum speed.
+\fB\-speed\fR code|number[k|m|c|d|b]
+Set the burn speed. Default is "max" (or "0") = maximum speed as announced
+by the drive.
+Further special speed codes are:
+.br
+"min" (or "\-1") selects minimum speed as announced by the drive.
+.br
+"none" avoids to send a speed setting command to the drive before
+burning begins.
+.br
 Speed can be given in media dependent numbers or as a
 desired throughput per second in MMC compliant kB (= 1000)
 or MB (= 1000 kB). Media x\-speed factor can be set explicity

xorriso/xorriso.h

@@ -1871,7 +1871,10 @@ int Xorriso_option_signal_handling(struct XorrisO *xorriso, char *mode,
 /* @since 1.1.8 */
 int Xorriso_option_sleep(struct XorrisO *xorriso, char *duration, int flag);
 
-/* Command -speed */
+/* Command -speed , -read_speed */
+/* @param flag bit0= @since 1.3.4
+                     -read_speed rather than -speed
+*/ 
 int Xorriso_option_speed(struct XorrisO *xorriso, char *speed, int flag);
 
 /* Command -split_size */

xorriso/xorriso.info

@@ -645,6 +645,28 @@ The following commands should normally be performed before loading an
 image by acquiring an input drive. In rare cases it is desirable to
 activate them only after image loading.
 
+-read_speed code|number[k|m|c|d|b]
+     Set the speed for reading. Default is "none", which avoids to send
+     a speed setting command to the drive before reading begins.
+     Further special speed codes are:
+     "max" (or "0") selects maximum speed as announced by the drive.
+     "min" (or "-1") selects minimum speed as announced by the drive.
+     Speed can be given in media dependent numbers or as a desired
+     throughput per second in MMC compliant kB (= 1000) or MB (= 1000
+     kB). Media x-speed factor can be set explicity by "c" for CD, "d"
+     for DVD, "b" for BD, "x" is optional.
+     Example speeds:
+     706k = 706kB/s = 4c = 4xCD
+     5540k = 5540kB/s = 4d = 4xDVD
+     If there is no hint about the speed unit attached, then the medium
+     in the -indev will decide. Default unit is CD = 176.4k.
+     MMC drives usually activate their own idea of speed and take the
+     speed value given by the burn program only as upper limit for
+     their own decision.
+     Depending on the drive, the reported read speeds can be
+     deceivingly low.  Often it is possible to achieve higher read
+     speeds by bold values like "20xDVD" or "16xBD".
+
 -load entity id
      Load a particular (possibly outdated) ISO session from -dev or
      -indev.  Usually all available sessions are shown with command
@@ -2032,8 +2054,11 @@ File: xorriso.info,  Node: Writing,  Next: SetWrite,  Prev: Filter,  Up: Command
      reserve space.
 
 -list_speeds
-     Put out a list of speed values as reported by the output drive with
-     the loaded medium. This does not necessarily mean that the medium
+     Put out a list of speed values as reported by the drives with the
+     loaded media. The list tells read speeds of the input drive and of
+     the output drive. Further it tells write speeds of the output
+     drive.
+     The list of write speeds does not necessarily mean that the medium
      is writable or that these speeds are actually achievable.
      Especially the lists reported with empty drive or with ROM media
      obviously advertise speeds for other media.
@@ -2041,12 +2066,14 @@ File: xorriso.info,  Node: Writing,  Next: SetWrite,  Prev: Filter,  Up: Command
      The drive is supposed to choose a safe speed that is as near to
      the desired speed as possible.
      At the end of the list, "Write speed L" and "Write speed H" are
-     the best guesses for lower and upper speed limit.  "Write speed l"
-     and "Write speed h" may appear only with CD and eventually
-     override the list of other speed offers.
+     the best guesses for lower and upper write speed limit.  "Write
+     speed l" and "Write speed h" may appear only with CD and
+     eventually override the list of other speed offers.
      Only if the drive reports contradicting speed information there
      will appear "Write speed 0", which tells the outcome of speed
      selection by command -speed 0, if it deviates from "Write speed H".
+     "Read speed L" and "Read speed H" tell the minimum and maximum
+     read speeds, as would be chosen by -read_speed "min" resp. "max".
 
 -close_damaged "as_needed"|"force"
      Try to close the upcomming track and session if the drive reported
@@ -2364,12 +2391,16 @@ according to the setting of command -acl.
      compressed, e.g. by program mkzftree.
      "default" same as "level=6:block_size=32k:by_magic=off"
 
--speed number[k|m|c|d|b]
-     Set the burn speed. Default is 0 = maximum speed.  Speed can be
-     given in media dependent numbers or as a desired throughput per
-     second in MMC compliant kB (= 1000) or MB (= 1000 kB). Media
-     x-speed factor can be set explicity by "c" for CD, "d" for DVD,
-     "b" for BD, "x" is optional.
+-speed code|number[k|m|c|d|b]
+     Set the burn speed. Default is "max" (or "0") = maximum speed as
+     announced by the drive.  Further special speed codes are:
+     "min" (or "-1") selects minimum speed as announced by the drive.
+     "none" avoids to send a speed setting command to the drive before
+     burning begins.
+     Speed can be given in media dependent numbers or as a desired
+     throughput per second in MMC compliant kB (= 1000) or MB (= 1000
+     kB). Media x-speed factor can be set explicity by "c" for CD, "d"
+     for DVD, "b" for BD, "x" is optional.
      Example speeds:
      706k = 706kB/s = 4c = 4xCD
      5540k = 5540kB/s = 4d = 4xDVD
@@ -4793,7 +4824,7 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * #   starts a comment line:             Scripting.           (line 173)
 * -abort_on   controls abort on error:   Exception.           (line  27)
 * -abstract_file   sets abstract file name: SetWrite.         (line 233)
-* -acl   controls handling of ACLs:      Loading.             (line 146)
+* -acl   controls handling of ACLs:      Loading.             (line 168)
 * -add   inserts one or more paths:      Insert.              (line  46)
 * -add_plainly   inserts one or more paths: Insert.           (line  65)
 * -alter_date   sets timestamps in ISO image: Manip.          (line 154)
@@ -4803,14 +4834,14 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -application_id   sets application id: SetWrite.            (line 192)
 * -application_use   sets application use field: SetWrite.    (line 258)
 * -as   emulates mkisofs or cdrecord:    Emulation.           (line  13)
-* -assert_volid   rejects undesired images: Loading.          (line  84)
-* -auto_charset   learns character set from image: Loading.   (line  98)
+* -assert_volid   rejects undesired images: Loading.          (line 106)
+* -auto_charset   learns character set from image: Loading.   (line 120)
 * -backslash_codes   enables backslash conversion: Scripting. (line  78)
-* -ban_stdio_write   demands real drive: Loading.             (line 254)
+* -ban_stdio_write   demands real drive: Loading.             (line 276)
 * -biblio_file   sets biblio file name:  SetWrite.            (line 240)
 * -blank   erases media:                 Writing.             (line  61)
 * -boot_image   controls bootability:    Bootable.            (line  26)
-* -calm_drive   reduces drive activity:  Loading.             (line 243)
+* -calm_drive   reduces drive activity:  Loading.             (line 265)
 * -cd   sets working directory in ISO:   Navigate.            (line   7)
 * -cdx   sets working directory on disk: Navigate.            (line  16)
 * -changes_pending   overrides change status: Writing.        (line  13)
@@ -4826,8 +4857,8 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -chown   sets ownership in ISO image:  Manip.               (line  49)
 * -chown_r   sets ownership in ISO image: Manip.              (line  54)
 * -clone   copies ISO directory tree:    Insert.              (line 180)
-* -close   controls media closing:       SetWrite.            (line 349)
-* -close_damaged   closes damaged track and session: Writing. (line 163)
+* -close   controls media closing:       SetWrite.            (line 353)
+* -close_damaged   closes damaged track and session: Writing. (line 168)
 * -close_filter_list   bans filter registration: Filter.      (line  52)
 * -commit   writes pending ISO image:    Writing.             (line  29)
 * -commit_eject    writes and ejects:    Writing.             (line  56)
@@ -4842,23 +4873,23 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -cpr   inserts like with cp -r:        Insert.              (line 156)
 * -cpx   copies files to disk:           Restore.             (line  95)
 * -cut_out   inserts piece of data file: Insert.              (line 130)
-* -data_cache_size   adjusts read cache size: Loading.        (line 272)
+* -data_cache_size   adjusts read cache size: Loading.        (line 294)
 * -dev   acquires one drive for input and output: AqDrive.    (line  12)
 * -device_links   gets list of drives:   Inquiry.             (line  18)
 * -devices   gets list of drives:        Inquiry.             (line   7)
 * -dialog   enables dialog mode:         DialogCtl.           (line   7)
-* -disk_dev_ino   fast incremental backup: Loading.           (line 193)
+* -disk_dev_ino   fast incremental backup: Loading.           (line 215)
 * -disk_pattern   controls pattern expansion: Insert.         (line  35)
 * -displacement   compensate altered image start address: Loading.
-                                                              (line  36)
-* -drive_class   controls drive accessability: Loading.       (line  54)
+                                                              (line  58)
+* -drive_class   controls drive accessability: Loading.       (line  76)
 * -du   show directory size in ISO image: Navigate.           (line  89)
-* -dummy   controls write simulation:    SetWrite.            (line 338)
+* -dummy   controls write simulation:    SetWrite.            (line 342)
 * -dus   show directory size in ISO image: Navigate.          (line  93)
 * -dusx   show directory size on disk:   Navigate.            (line 102)
 * -dux   show directory size on disk:    Navigate.            (line  97)
-* -dvd_obs   set write block size:       SetWrite.            (line 325)
-* -early_stdio_test   classifies stdio drives: Loading.       (line 259)
+* -dvd_obs   set write block size:       SetWrite.            (line 329)
+* -early_stdio_test   classifies stdio drives: Loading.       (line 281)
 * -eject    ejects drive tray:           Writing.             (line  52)
 * -end   writes pending session and ends program: Scripting.  (line 167)
 * -errfile_log   logs problematic disk files: Scripting.      (line 129)
@@ -4873,21 +4904,21 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -find   traverses and alters ISO tree: CmdFind.             (line   7)
 * -findx   traverses disk tree:          Navigate.            (line 106)
 * -follow   softlinks and mount points:  SetInsert.           (line  76)
-* -for_backup    -acl,-xattr,-hardlinks,-md5: Loading.        (line 188)
+* -for_backup    -acl,-xattr,-hardlinks,-md5: Loading.        (line 210)
 * -format   formats media:               Writing.             (line  91)
-* -fs   sets size of fifo:               SetWrite.            (line 342)
+* -fs   sets size of fifo:               SetWrite.            (line 346)
 * -getfacl   shows ACL in ISO image:     Navigate.            (line  70)
 * -getfacl_r   shows ACL in ISO image:   Navigate.            (line  77)
 * -getfattr   shows xattr in ISO image:  Navigate.            (line  81)
 * -getfattr_r   shows xattr in ISO image: Navigate.           (line  85)
 * -gid   sets global ownership:          SetWrite.            (line 282)
 * -grow_blindly   overides next writeable address: AqDrive.   (line  46)
-* -hardlinks   controls handling of hard links: Loading.      (line 110)
+* -hardlinks   controls handling of hard links: Loading.      (line 132)
 * -help   prints help text:              Scripting.           (line  20)
 * -hfsplus   enables production of HFS+ partition: SetWrite.  (line  14)
 * -hide   excludes file names from directory trees: Manip.    (line 184)
 * -history   brings text into readline history: Scripting.    (line  44)
-* -in_charset   sets input character set: Loading.            (line  92)
+* -in_charset   sets input character set: Loading.            (line 114)
 * -indev   acquires a drive for input:   AqDrive.             (line  24)
 * -iso_rr_pattern   controls pattern expansion: Manip.        (line  10)
 * -jigdo   clears JTE or or adds parameter to JTE: Jigdo.     (line  33)
@@ -4899,10 +4930,10 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -list_extras   lists compile time extra features: Scripting.
                                                               (line  26)
 * -list_formats   lists available formats: Writing.           (line 134)
-* -list_profiles   lists supported media: Writing.            (line 177)
+* -list_profiles   lists supported media: Writing.            (line 182)
 * -list_speeds   lists available write speeds: Writing.       (line 146)
 * -lns   creates ISO symbolic link:      Insert.              (line 175)
-* -load   addresses a particular session as input: Loading.   (line  11)
+* -load   addresses a particular session as input: Loading.   (line  33)
 * -local_charset   sets terminal character set: Charset.      (line  47)
 * -logfile   logs output channels to file: Frontend.          (line  20)
 * -ls   lists files in ISO image:        Navigate.            (line  26)
@@ -4917,7 +4948,7 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -map_l   inserts paths from disk file: Insert.              (line  98)
 * -map_single   inserts path:            Insert.              (line  94)
 * -mark   sets synchronizing message:    Frontend.            (line  25)
-* -md5   controls handling of MD5 sums:  Loading.             (line 159)
+* -md5   controls handling of MD5 sums:  Loading.             (line 181)
 * -mkdir   creates ISO directory:        Insert.              (line 170)
 * -mount   issues mount command for ISO session: Restore.     (line 129)
 * -mount_cmd   composes mount command line: Inquiry.          (line  52)
@@ -4937,7 +4968,7 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -outdev   acquires a drive for output: AqDrive.             (line  31)
 * -overwrite   enables overwriting in ISO: SetInsert.         (line 127)
 * -pacifier   controls pacifier text form: Emulation.         (line 163)
-* -padding   sets amount or mode of image padding: SetWrite.  (line 363)
+* -padding   sets amount or mode of image padding: SetWrite.  (line 367)
 * -page   set terminal geometry:         DialogCtl.           (line  19)
 * -paste_in   copies file into disk file: Restore.            (line 124)
 * -path_list   inserts paths from disk file: Insert.          (line  79)
@@ -4959,6 +4990,7 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -quoted_path_list   inserts paths from disk file: Insert.   (line  84)
 * -read_mkisofsrc   searches and reads .mkisofsrc file: Emulation.
                                                               (line 151)
+* -read_speed   set read speed:          Loading.             (line  11)
 * -reassure   enables confirmation question: DialogCtl.       (line  32)
 * -report_about   controls verbosity:    Exception.           (line  55)
 * -return_with   controls exit value:    Exception.           (line  39)
@@ -4969,7 +5001,7 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
                                                               (line  52)
 * -rollback   discards pending changes:  Writing.             (line   9)
 * -rollback_end   ends program without writing: Scripting.    (line 170)
-* -rom_toc_scan   searches for sessions: Loading.             (line 214)
+* -rom_toc_scan   searches for sessions: Loading.             (line 236)
 * -rr_reloc_dir   sets name of relocation directory: SetWrite.
                                                               (line 141)
 * -scdbackup_tag   enables scdbackup checksum tag: Emulation. (line 177)
@@ -4995,8 +5027,8 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -split_size   enables large file splitting: SetInsert.      (line 140)
 * -status   shows current settings:      Scripting.           (line  47)
 * -status_history_max   curbs -status history: Scripting.     (line  56)
-* -stdio_sync   controls stdio buffer:   SetWrite.            (line 332)
-* -stream_recording   controls defect management: SetWrite.   (line 313)
+* -stdio_sync   controls stdio buffer:   SetWrite.            (line 336)
+* -stream_recording   controls defect management: SetWrite.   (line 317)
 * -system_id   sets system id:           SetWrite.            (line 201)
 * -tell_media_space   reports free space: Inquiry.            (line 104)
 * -temp_mem_limit   curbs memory consumption: Scripting.      (line 103)
@@ -5011,10 +5043,10 @@ File: xorriso.info,  Node: CommandIdx,  Next: ConceptIdx,  Prev: Legal,  Up: Top
 * -volid   sets volume id:               SetWrite.            (line 160)
 * -volset_id   sets volume set id:       SetWrite.            (line 181)
 * -volume_date   sets volume timestamp:  SetWrite.            (line 208)
-* -write_type   chooses TAO or SAO/DAO:  SetWrite.            (line 355)
+* -write_type   chooses TAO or SAO/DAO:  SetWrite.            (line 359)
 * -x   enables automatic execution order of arguments: ArgSort.
                                                               (line  16)
-* -xattr   controls handling of xattr (EA): Loading.          (line 154)
+* -xattr   controls handling of xattr (EA): Loading.          (line 176)
 * -zisofs   controls zisofs production:  SetWrite.            (line 286)
 
 
@@ -5027,7 +5059,7 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Menu:
 
 * ACL, _definition:                      Extras.              (line  49)
-* ACL, control handling, -acl:           Loading.             (line 146)
+* ACL, control handling, -acl:           Loading.             (line 168)
 * ACL, set in ISO image, -setfacl:       Manip.               (line  80)
 * ACL, set in ISO image, -setfacl_list:  Manip.               (line 108)
 * ACL, set in ISO image, -setfacl_r:     Manip.               (line 105)
@@ -5039,8 +5071,8 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Appended Filesystem Image, -append_partition: Bootable.     (line 249)
 * Automatic execution order, of arguments, -x: ArgSort.       (line  16)
 * Backslash Interpretation, _definition: Processing.          (line  52)
-* Backup, enable fast incremental, -disk_dev_ino: Loading.    (line 193)
-* Backup, enable features, -for_backup:  Loading.             (line 188)
+* Backup, enable fast incremental, -disk_dev_ino: Loading.    (line 215)
+* Backup, enable features, -for_backup:  Loading.             (line 210)
 * Backup, scdbackup checksum tag, -scdbackup: Emulation.      (line 177)
 * Blank media, _definition:              Media.               (line  29)
 * Blind growing, _definition:            Methods.             (line  40)
@@ -5048,10 +5080,10 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Bugs, reporting:                       Bugreport.           (line   6)
 * cdrecord, Emulation:                   Emulation.           (line 116)
 * Character Set, _definition:            Charset.             (line   6)
-* Character Set, for input, -in_charset: Loading.             (line  92)
+* Character Set, for input, -in_charset: Loading.             (line 114)
 * Character Set, for input/output, -charset: Charset.         (line  43)
 * Character Set, for output, -out_charset: SetWrite.          (line 272)
-* Character set, learn from image, -auto_charset: Loading.    (line  98)
+* Character set, learn from image, -auto_charset: Loading.    (line 120)
 * Character Set, of terminal, -local_charset: Charset.        (line  47)
 * CHRP partition, _definition:           Bootable.            (line 158)
 * Closed media, _definition:             Media.               (line  43)
@@ -5060,7 +5092,7 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Create, new ISO image, _definition:    Methods.             (line   6)
 * Cylinder alignment, _definition:       Bootable.            (line 198)
 * Cylinder size, _definition:            Bootable.            (line 187)
-* Damaged track and session, close, -close_damaged: Writing.  (line 163)
+* Damaged track and session, close, -close_damaged: Writing.  (line 168)
 * Delete, from ISO image, -rm:           Manip.               (line  21)
 * Delete, from ISO image, -rm_r:         Manip.               (line  28)
 * Delete, ISO directory, -rmdir:         Manip.               (line  32)
@@ -5076,17 +5108,17 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Directory, delete, -rmdir:             Manip.               (line  32)
 * disk_path, _definition:                Insert.              (line   6)
 * Drive, _definition:                    Drives.              (line   6)
-* Drive, accessability, -drive_class:    Loading.             (line  54)
-* Drive, classify stdio, -early_stdio_test: Loading.          (line 259)
-* Drive, demand real MMC, -ban_stdio_write: Loading.          (line 254)
+* Drive, accessability, -drive_class:    Loading.             (line  76)
+* Drive, classify stdio, -early_stdio_test: Loading.          (line 281)
+* Drive, demand real MMC, -ban_stdio_write: Loading.          (line 276)
 * Drive, eject tray, -eject:             Writing.             (line  52)
 * Drive, for input and output, -dev:     AqDrive.             (line  12)
 * Drive, for input, -indev:              AqDrive.             (line  24)
 * Drive, for output, -outdev:            AqDrive.             (line  31)
 * Drive, get drive list, -device_links:  Inquiry.             (line  18)
 * Drive, get drive list, -devices:       Inquiry.             (line   7)
-* Drive, list supported media, -list_profiles: Writing.       (line 177)
-* Drive, reduce activity, -calm_drive:   Loading.             (line 243)
+* Drive, list supported media, -list_profiles: Writing.       (line 182)
+* Drive, reduce activity, -calm_drive:   Loading.             (line 265)
 * Drive, report SCSI commands, -scsi_log: Scripting.          (line 158)
 * Drive, write and eject, -commit_eject: Writing.             (line  56)
 * EA, _definition:                       Extras.              (line  65)
@@ -5116,13 +5148,13 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Group, in ISO image, -chgrp:           Manip.               (line  57)
 * Group, in ISO image, -chgrp_r:         Manip.               (line  62)
 * Growing, _definition:                  Methods.             (line  19)
-* Hard links, control handling, -hardlinks: Loading.          (line 110)
+* Hard links, control handling, -hardlinks: Loading.          (line 132)
 * HFS+ allocation block size:            Bootable.            (line 237)
 * HFS+ serial number:                    Bootable.            (line 234)
 * hidden, set in ISO image, -hide:       Manip.               (line 184)
-* Image reading, cache size, -data_cache_size: Loading.       (line 272)
+* Image reading, cache size, -data_cache_size: Loading.       (line 294)
 * Image, _definition:                    Model.               (line   9)
-* Image, demand volume ID, -assert_volid: Loading.            (line  84)
+* Image, demand volume ID, -assert_volid: Loading.            (line 106)
 * Image, discard pending changes, -rollback: Writing.         (line   9)
 * Image, override change status, -changes_pending: Writing.   (line  13)
 * Image, set abstract file name, -abstract_file: SetWrite.    (line 233)
@@ -5167,7 +5199,7 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * List delimiter, _definition:           Processing.          (line   9)
 * MBR, _definition:                      Extras.              (line  26)
 * MBR, set, -boot_image system_area=:    Bootable.            (line 126)
-* MD5, control handling, -md5:           Loading.             (line 159)
+* MD5, control handling, -md5:           Loading.             (line 181)
 * Media, erase, -blank:                  Writing.             (line  61)
 * Media, format, -format:                Writing.             (line  91)
 * Media, list formats, -list_formats:    Writing.             (line 134)
@@ -5239,6 +5271,7 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Program, status history, -status_history_max: Scripting.    (line  56)
 * Program, wait a time span, -sleep:     Scripting.           (line 125)
 * Quoted input, _definition:             Processing.          (line  46)
+* Read, set speed, -read_speed:          Loading.             (line  11)
 * Recovery, retrieve blocks, -check_media: Verify.            (line  21)
 * Relocation directory, set name, -rr_reloc_dir: SetWrite.    (line 141)
 * Rename, in ISO image, -move:           Manip.               (line  35)
@@ -5256,19 +5289,19 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
                                                               (line  67)
 * Rock Ridge, _definition:               Extras.              (line   6)
 * Session, _definition:                  Model.               (line   6)
-* Session, altered start address, -displacement: Loading.     (line  36)
+* Session, altered start address, -displacement: Loading.     (line  58)
 * Session, info string, -session_string: Inquiry.             (line  78)
 * Session, issue mount command, -mount:  Restore.             (line 129)
 * Session, log when written, -session_log: Scripting.         (line 149)
 * Session, mount command line, -mount_cmd: Inquiry.           (line  52)
 * Session, mount parameters, -mount_opts: Inquiry.            (line  68)
-* Session, select as input, -load:       Loading.             (line  11)
+* Session, select as input, -load:       Loading.             (line  33)
 * Sorting order, for -x, -list_arg_sorting: ArgSort.          (line  27)
 * SUN Disk Label, production:            Bootable.            (line 220)
 * SUN SPARC boot images, activation:     Bootable.            (line 270)
 * Symbolic link, create, -lns:           Insert.              (line 175)
 * System area, _definition:              Bootable.            (line 126)
-* Table-of-content, search sessions, -rom_toc_scan: Loading.  (line 214)
+* Table-of-content, search sessions, -rom_toc_scan: Loading.  (line 236)
 * Table-of-content, show, -toc:          Inquiry.             (line  28)
 * Timestamps, set in ISO image, -alter_date: Manip.           (line 154)
 * Timestamps, set in ISO image, -alter_date_r: Manip.         (line 180)
@@ -5281,27 +5314,27 @@ File: xorriso.info,  Node: ConceptIdx,  Prev: CommandIdx,  Up: Top
 * Verify, file checksum, -check_md5:     Verify.              (line 154)
 * Verify, file tree checksums, -check_md5_r: Verify.          (line 170)
 * Verify, preset -check_media, -check_media_defaults: Verify. (line  41)
-* Write, block size, -dvd_obs:           SetWrite.            (line 325)
+* Write, block size, -dvd_obs:           SetWrite.            (line 329)
 * Write, bootability, -boot_image:       Bootable.            (line  26)
-* Write, buffer syncing, -stdio_sync:    SetWrite.            (line 332)
-* Write, close media, -close:            SetWrite.            (line 349)
+* Write, buffer syncing, -stdio_sync:    SetWrite.            (line 336)
+* Write, close media, -close:            SetWrite.            (line 353)
 * Write, compliance to specs, -compliance: SetWrite.          (line  58)
-* Write, defect management, -stream_recording: SetWrite.      (line 313)
+* Write, defect management, -stream_recording: SetWrite.      (line 317)
 * Write, disable Rock Ridge, -rockridge: SetWrite.            (line  52)
 * Write, enable HFS+, -hfsplus:          SetWrite.            (line  14)
 * Write, enable Joliet, -joliet:         SetWrite.            (line  10)
-* Write, fifo size, -fs:                 SetWrite.            (line 342)
+* Write, fifo size, -fs:                 SetWrite.            (line 346)
 * Write, free space, -tell_media_space:  Inquiry.             (line 104)
 * Write, log problematic disk files, -errfile_log: Scripting. (line 129)
 * Write, log written sessions, -session_log: Scripting.       (line 149)
-* Write, padding image, -padding:        SetWrite.            (line 363)
+* Write, padding image, -padding:        SetWrite.            (line 367)
 * Write, pending ISO image, -commit:     Writing.             (line  29)
 * Write, predict image size, -print_size: Inquiry.            (line  91)
 * Write, set speed, -speed:              SetWrite.            (line 298)
-* Write, simulation, -dummy:             SetWrite.            (line 338)
-* Write, TAO or SAO/DAO, -write_type:    SetWrite.            (line 355)
+* Write, simulation, -dummy:             SetWrite.            (line 342)
+* Write, TAO or SAO/DAO, -write_type:    SetWrite.            (line 359)
 * xattr, _definition:                    Extras.              (line  65)
-* xattr, control handling, -xattr:       Loading.             (line 154)
+* xattr, control handling, -xattr:       Loading.             (line 176)
 * xattr, set in ISO image, -setfattr:    Manip.               (line 118)
 * xattr, set in ISO image, -setfattr_list: Manip.             (line 134)
 * xattr, set in ISO image, -setfattr_r:  Manip.               (line 131)
@@ -5324,47 +5357,47 @@ Node: Commands24622
 Node: ArgSort26299
 Node: AqDrive27791
 Node: Loading30836
-Node: Insert46505
-Node: SetInsert56704
-Node: Manip65281
-Node: CmdFind74790
-Node: Filter89832
-Node: Writing94388
-Node: SetWrite104085
-Node: Bootable123552
-Node: Jigdo139942
-Node: Charset144189
-Node: Exception146951
-Node: DialogCtl153071
-Node: Inquiry155669
-Node: Navigate161986
-Node: Verify170284
-Node: Restore179316
-Node: Emulation186403
-Node: Scripting196705
-Node: Frontend204476
-Node: Examples214083
-Node: ExDevices215261
-Node: ExCreate215920
-Node: ExDialog217205
-Node: ExGrowing218470
-Node: ExModifying219275
-Node: ExBootable219779
-Node: ExCharset220331
-Node: ExPseudo221152
-Node: ExCdrecord222050
-Node: ExMkisofs222367
-Node: ExGrowisofs223707
-Node: ExException224842
-Node: ExTime225296
-Node: ExIncBackup225755
-Node: ExRestore229735
-Node: ExRecovery230668
-Node: Files231238
-Node: Seealso232537
-Node: Bugreport233260
-Node: Legal233841
-Node: CommandIdx234852
-Node: ConceptIdx251441
+Node: Insert47670
+Node: SetInsert57869
+Node: Manip66446
+Node: CmdFind75955
+Node: Filter90997
+Node: Writing95553
+Node: SetWrite105545
+Node: Bootable125256
+Node: Jigdo141646
+Node: Charset145893
+Node: Exception148655
+Node: DialogCtl154775
+Node: Inquiry157373
+Node: Navigate163690
+Node: Verify171988
+Node: Restore181020
+Node: Emulation188107
+Node: Scripting198409
+Node: Frontend206180
+Node: Examples215787
+Node: ExDevices216965
+Node: ExCreate217624
+Node: ExDialog218909
+Node: ExGrowing220174
+Node: ExModifying220979
+Node: ExBootable221483
+Node: ExCharset222035
+Node: ExPseudo222856
+Node: ExCdrecord223754
+Node: ExMkisofs224071
+Node: ExGrowisofs225411
+Node: ExException226546
+Node: ExTime227000
+Node: ExIncBackup227459
+Node: ExRestore231439
+Node: ExRecovery232372
+Node: Files232942
+Node: Seealso234241
+Node: Bugreport234964
+Node: Legal235545
+Node: CommandIdx236556
+Node: ConceptIdx253218
 
 End Tag Table

xorriso/xorriso.texi

@@ -50,7 +50,7 @@
 @c man .\" First parameter, NAME, should be all caps
 @c man .\" Second parameter, SECTION, should be 1-8, maybe w/ subsection
 @c man .\" other parameters are allowed: see man(7), man(1)
-@c man .TH XORRISO 1 "Version 1.3.3, Sep 07, 2013"
+@c man .TH XORRISO 1 "Version 1.3.3, Oct 08, 2013"
 @c man .\" Please adjust this date whenever revising the manpage.
 @c man .\"
 @c man .\" Some roff macros, for reference:
@@ -910,6 +910,40 @@ them only after image loading.
 @table @asis
 @sp 1
 @c man .TP
+@item -read_speed code|number[k|m|c|d|b]
+@kindex -read_speed   set read speed
+@cindex Read, set speed, -read_speed
+Set the speed for reading. Default is "none", which avoids to send a speed
+setting command to the drive before reading begins.
+@*
+Further special speed codes are:
+@*
+"max" (or "0") selects maximum speed as announced by the drive.
+@*
+"min" (or "-1") selects minimum speed as announced by the drive.
+@*
+Speed can be given in media dependent numbers or as a
+desired throughput per second in MMC compliant kB (= 1000)
+or MB (= 1000 kB). Media x-speed factor can be set explicity
+by "c" for CD, "d" for DVD, "b" for BD, "x" is optional.
+@*
+Example speeds:
+@*
+ 706k = 706kB/s = 4c = 4xCD
+@*
+ 5540k = 5540kB/s = 4d = 4xDVD
+@*
+If there is no hint about the speed unit attached, then the
+medium in the -indev will decide. Default unit is CD = 176.4k.
+@*
+MMC drives usually activate their own idea of speed and take
+the speed value given by the burn program only as upper limit
+for their own decision.
+@*
+Depending on the drive, the reported read speeds can be deceivingly low.
+Often it is possible to achieve higher read speeds by bold values
+like "20xDVD" or "16xBD".
+@c man .TP
 @item -load entity id
 @kindex -load   addresses a particular session as input
 @cindex Session, select as input, -load
@@ -2728,8 +2762,11 @@ Smaller format size with DVD-RAM, BD-RE, or BD-R means more reserve space.
 @item -list_speeds
 @kindex -list_speeds   lists available write speeds
 @cindex Media, list write speeds, -list_speeds
-Put out a list of speed values as reported by the output drive with
-the loaded medium. This does not necessarily mean that the medium is writable
+Put out a list of speed values as reported by the drives with the loaded
+media. The list tells read speeds of the input drive and of the output
+drive. Further it tells write speeds of the output drive.
+@*
+The list of write speeds does not necessarily mean that the medium is writable
 or that these speeds are actually achievable. Especially the
 lists reported with empty drive or with ROM media obviously advertise
 speeds for other media.
@@ -2739,13 +2776,16 @@ The drive is supposed to choose a safe speed that is as near to the desired
 speed as possible.
 @*
 At the end of the list, "Write speed L" and "Write speed H"
-are the best guesses for lower and upper speed limit.
+are the best guesses for lower and upper write speed limit.
 "Write speed l" and "Write speed h" may appear only with CD
 and eventually override the list of other speed offers.
 @*
 Only if the drive reports contradicting speed information there will appear
 "Write speed 0", which tells the outcome of speed selection by command
 -speed 0, if it deviates from "Write speed H".
+@*
+"Read speed L" and "Read speed H" tell the minimum and maximum read speeds,
+as would be chosen by -read_speed "min" resp. "max".
 @c man .TP
 @item -close_damaged "as_needed"|"force"
 @kindex -close_damaged   closes damaged track and session
@@ -3153,10 +3193,18 @@ mkzftree.
 @*
  "default" same as "level=6:block_size=32k:by_magic=off"
 @c man .TP
-@item -speed number[k|m|c|d|b]
+@item -speed code|number[k|m|c|d|b]
 @kindex -speed   set write speed
 @cindex Write, set speed, -speed
-Set the burn speed. Default is 0 = maximum speed.
+Set the burn speed. Default is "max" (or "0") = maximum speed as announced
+by the drive.
+Further special speed codes are:
+@*
+"min" (or "-1") selects minimum speed as announced by the drive.
+@*
+"none" avoids to send a speed setting command to the drive before
+burning begins.
+@*
 Speed can be given in media dependent numbers or as a
 desired throughput per second in MMC compliant kB (= 1000)
 or MB (= 1000 kB). Media x-speed factor can be set explicity

xorriso/xorriso_private.h

@@ -341,7 +341,11 @@ struct XorrisO { /* the global context of xorriso */
  int ban_stdio_write;
  int do_dummy;
  int do_close;
- int speed;     /* in libburn units : 1000 bytes/second , 0 = Max, -1 = Min */
+
+ int write_speed;    /* Write speed in libburn units : 1000 bytes/second ,
+                                           0 = Max, -1 = Min, -2= do not set */
+ int read_speed;     /* Read speed. See above */
+
  int fs;        /* fifo size in 2048 byte chunks : at most 1 GB */
  int padding;   /* number of bytes to add after ISO 9660 image */
  int do_padding_by_libisofs; /* 0= by libburn , 1= by libisofs */

xorriso/xorriso_timestamp.h

@@ -1 +1 @@
-#define Xorriso_timestamP "2013.10.05.073918"
+#define Xorriso_timestamP "2013.10.08.175702"