diff --git a/test/xorriso.c b/test/xorriso.c
index 45aa9b9f..f062c7d8 100644
--- a/test/xorriso.c
+++ b/test/xorriso.c
@@ -3156,11 +3156,46 @@ int Xorriso_option_ban_stdio_write(struct XorrisO *xorriso, int flag)
 }
 
 
-/* Option -blank */
+/* Option -blank and -format */
+/* @param flag bit0= format rather than blank */
 int Xorriso_option_blank(struct XorrisO *xorriso, char *mode, int flag)
 {
- fprintf(stderr, ">>> LIBISOBURN : would perform -blank %s  on %s",
-         mode, xorriso->indev);
+ char drive_name[SfileadrL], *cmd= "-blank";
+ int ret, aq_flag= 2, mode_flag;
+
+ if(flag&1)
+   cmd= "-format";
+ if(xorriso->out_drive_handle == NULL) {
+   sprintf(xorriso->info_text,
+           "%s: No output drive set by -dev -or -outdev", cmd);
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
+   return(0);
+ }
+ if(xorriso->in_drive_handle == xorriso->out_drive_handle) {
+   if(xorriso->volset_change_pending) {
+     sprintf(xorriso->info_text,
+             "%s: Image changes pending. -commit or -rollback first.", cmd);
+     Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
+     return(0);
+   }
+   aq_flag= 3;
+ }
+
+ if(strcmp(mode, "all")==0 || strcmp(mode, "full")==0)
+   mode_flag= 0;
+ else
+   mode_flag= 1;
+ if(flag&1)
+   ret= Xorriso_format_media(xorriso, mode_flag);
+ else
+   ret= Xorriso_blank_media(xorriso, mode_flag);
+ strcpy(drive_name, xorriso->outdev);
+ Xorriso_give_up_drive(xorriso, aq_flag);
+ if(ret<=0)
+   return(ret);
+ ret= Xorriso_aquire_drive(xorriso, drive_name, aq_flag); 
+ if(ret<=0)
+   return(ret);
  return(1);
 }
 
@@ -3433,10 +3468,6 @@ int Xorriso_option_dev(struct XorrisO *xorriso, char *adr, int flag)
    ret= Xorriso_aquire_drive(xorriso, adr, flag&3); 
  if(ret<0)
    return(ret);
- if(Sfile_str(xorriso->indev, adr, 0)<=0)
-   return(-1);
- if(Sfile_str(xorriso->outdev, adr, 0)<=0)
-   return(-1);
  return(1);
 }
 
@@ -4626,6 +4657,10 @@ next_command:;
    (*idx)++;
    ret= Xorriso_option_findx(xorriso, arg1, 0);
 
+ } else if(strcmp(cmd,"-format")==0) {
+   (*idx)++;
+   ret= Xorriso_option_blank(xorriso, arg1, 1);
+
  } else if(strcmp(cmd,"-fs")==0) {
    (*idx)++;
    ret= Xorriso_option_fs(xorriso, arg1, 0);
diff --git a/test/xorriso.h b/test/xorriso.h
index 26b76376..8971d14e 100644
--- a/test/xorriso.h
+++ b/test/xorriso.h
@@ -133,7 +133,8 @@ int Xorriso_option_slater_date(struct XorrisO *xorriso,
 /* Option -ban_stdio_write */
 int Xorriso_option_ban_stdio_write(struct XorrisO *xorriso, int flag);
 
-/* Option -blank */
+/* Option -blank and -format */
+/* @param flag bit0= format rather than blank */
 int Xorriso_option_blank(struct XorrisO *xorriso, char *mode, int flag);
 
 /* Option -cd alias -cdi */
@@ -191,15 +192,15 @@ int Xorriso_option_end(struct XorrisO *xorriso, int flag);
 /* Option -f */ 
 int Xorriso_option_f(struct XorrisO *xorriso, int flag);
 
-/* Option -fs */
-int Xorriso_option_fs(struct XorrisO *xorriso, char *size, int flag);
-
 /* Option -find alias -findi */
 int Xorriso_option_findi(struct XorrisO *xorriso, char *pattern, int flag);
 
 /* Option -findx */
 int Xorriso_option_findx(struct XorrisO *xorriso, char *pattern, int flag);
 
+/* Option -fs */
+int Xorriso_option_fs(struct XorrisO *xorriso, char *size, int flag);
+
 /* Option -gid */
 int Xorriso_option_gid(struct XorrisO *xorriso, char *gid, int flag);
 
diff --git a/test/xorriso_private.h b/test/xorriso_private.h
index 10d175d6..ef13f284 100644
--- a/test/xorriso_private.h
+++ b/test/xorriso_private.h
@@ -183,6 +183,7 @@ int Xorriso_prescan_args(struct XorrisO *xorriso, int argc, char **argv,
 
 int Xorriso_execute_option(struct XorrisO *xorriso, char *line, int flag);
 
+int Sfile_str(char target[SfileadrL], char *source, int flag);
 
 #endif /* Xorriso_private_includeD */
 
diff --git a/test/xorriso_timestamp.h b/test/xorriso_timestamp.h
index 090f6d18..100f63ea 100644
--- a/test/xorriso_timestamp.h
+++ b/test/xorriso_timestamp.h
@@ -1 +1 @@
-#define Xorriso_timestamP "2007.10.19.173547"
+#define Xorriso_timestamP "2007.10.19.204155"
diff --git a/test/xorrisoburn.c b/test/xorrisoburn.c
index 35a507f5..3c675b94 100644
--- a/test/xorrisoburn.c
+++ b/test/xorrisoburn.c
@@ -147,11 +147,16 @@ int Xorriso_aquire_drive(struct XorrisO *xorriso, char *adr, int flag)
    Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
    return(0);
  }
- if(flag&2)
+ if(flag&2) {
    xorriso->out_drive_handle= dinfo;
- if(flag&1)
+   if(Sfile_str(xorriso->indev, adr, 0)<=0)
+     return(-1);
+ }
+ if(flag&1) {
    xorriso->in_drive_handle= dinfo;
- else
+   if(Sfile_str(xorriso->outdev, adr, 0)<=0)
+     return(-1);
+ } else
    return(1);
 
  drive= dinfo[0].drive;
@@ -234,6 +239,7 @@ int Xorriso_give_up_drive(struct XorrisO *xorriso, int flag)
    if(dinfo!=NULL)
      burn_drive_info_free(dinfo);
    xorriso->out_drive_handle= NULL;
+   xorriso->outdev[0]= 0;
  }
  Xorriso_process_msg_queues(xorriso,0);
  return(1);
@@ -755,8 +761,78 @@ int Xorriso_tell_media_space(struct XorrisO *xorriso, int flag)
 
  /* >>> subtract space needed for pending session image */
 
+ Xorriso_process_msg_queues(xorriso,0);
  if(free_space<=0)
    free_space= 0;
  return(free_space);
 }
 
+
+/* @param flag bit0=fast */
+int Xorriso_blank_media(struct XorrisO *xorriso, int flag)
+{
+ int ret;
+ struct burn_drive_info *dinfo;
+ struct burn_drive *drive;
+ enum burn_disc_status disc_state;
+ struct burn_progress p;
+ double percent = 1.0;
+ int current_profile;
+ char current_profile_name[80];
+
+ ret= Xorriso_get_drive_handles(xorriso, &dinfo, &drive,
+                                "on attempt to -blank", 2);
+ if(ret<=0)
+   return(0);
+
+ burn_disc_get_profile(drive, &current_profile, current_profile_name);
+
+ /* >>> */;
+
+ disc_state = isoburn_disc_get_status(drive);
+ if(current_profile == 0x13) {
+   ; /* formatted DVD-RW will get blanked to sequential state */
+ } else if(disc_state == BURN_DISC_BLANK) {
+   sprintf(xorriso->info_text,"Blank media detected. Will leave it untouched");
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "NOTE", 0);
+   return 2;
+ } else if(disc_state==BURN_DISC_FULL || disc_state==BURN_DISC_APPENDABLE) {
+   ;
+ } else if(disc_state == BURN_DISC_EMPTY) {
+   sprintf(xorriso->info_text,"No media detected in drive");
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
+   return 0;
+ } else {
+   sprintf(xorriso->info_text, "Unsuitable drive and media state");
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
+   return 0;
+ }
+ if(!isoburn_disc_erasable(drive)) {
+   sprintf(xorriso->info_text, "Media is not of erasable type");
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "SORRY", 0);
+   return 0;
+ }
+ sprintf(xorriso->info_text, "Beginning to %s-blank media.\n",
+         ((flag&1)?"fast":"full"));
+ Xorriso_info(xorriso,0);
+ isoburn_disc_erase(drive, (flag&1));
+ usleep(1000000);
+ while (burn_drive_get_status(drive, &p) != BURN_DRIVE_IDLE) {
+   if(p.sectors>0 && p.sector>=0) /* display 1 to 99 percent */
+     percent = 1.0 + ((double) p.sector+1.0) / ((double) p.sectors) * 98.0;
+   sprintf(xorriso->info_text, "Blanking  ( %.1f%% done )", percent);
+   Xorriso_msgs_submit(xorriso, 0, xorriso->info_text, 0, "UPDATE", 0);
+   usleep(1000000);
+ }
+ sprintf(xorriso->info_text, "Blanking done\n");
+ Xorriso_info(xorriso,0);
+ return(1);
+}
+
+
+int Xorriso_format_media(struct XorrisO *xorriso, int flag)
+{
+ fprintf(stderr, ">>> XORRISO : -format not implemented yet\n");
+ return(1);
+}
+ 
diff --git a/test/xorrisoburn.h b/test/xorrisoburn.h
index 8ef7ef63..f3751827 100644
--- a/test/xorrisoburn.h
+++ b/test/xorrisoburn.h
@@ -39,6 +39,10 @@ int Xorriso_show_devices(struct XorrisO *xorriso, int flag);
 
 int Xorriso_tell_media_space(struct XorrisO *xorriso, int flag);
 
+int Xorriso_blank_media(struct XorrisO *xorriso, int flag);
+
+int Xorriso_format_media(struct XorrisO *xorriso, int flag);
+
 
 #endif /* Xorrisoburn_includeD */