Updated cdrskin help tests and docs: -audio, obsolete eject_device=
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@ -31,7 +31,7 @@ On top of libburn there is implemented cdrskin 0.1.5, a limited cdrecord
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compatibility wrapper which allows to use some libburn features from
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the command line.
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Interested users of cdrecord are invited to participate in the development
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of cdrskin. Contact: scdbackup@gmx.net
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of cdrskin. Contact: scdbackup@gmx.net or libburn-hackers@pykix.org .
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Important :
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@ -92,10 +92,6 @@ It will not collide with an installed version of libburn either.
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But libpthread must be installed on the system and glibc has to match. (See
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below for a way to create a statically linked binary.)
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Up to now i discourage to install the emerging libraries and to use them
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with other programs. Unless you need my patches, better use vanilla libburn
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for that.
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Usage
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@ -140,19 +136,26 @@ Obtain some info about the drive and the inserted media
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cdrskin dev=1,1,0 -atip
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Thoroughly blank a CD-RW
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cdrskin -v dev=1,1,0 blank=all eject_device=/dev/cdrom -eject
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cdrskin -v dev=1,1,0 blank=all -eject
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Blank CD-RW sufficiently for making it ready for overwrite
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cdrskin -v dev=1,1,0 blank=fast eject_device=/dev/cdrom -eject
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cdrskin -v dev=1,1,0 blank=fast -eject
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Burn image file my_image.iso to CD
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cdrskin -v dev=1,1,0 speed=12 fs=8m -sao driveropts=burnfree padsize=300k \
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eject_device=/dev/cdrom -eject my_image.iso
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-eject my_image.iso
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Burn a compressed afio archive to CD on-the-fly
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find . | afio -oZ - | cdrskin -v dev=1,1,0 fs=32m speed=8 -sao \
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driveropts=burnfree padsize=300k tsize=650m -
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Burn 4 audio tracks to CD
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ogg123 -d raw -f track01.cd /path/to/track1.ogg
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oggdec -R -o track02.cd /path/to/track2.ogg
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lame --decode -t -o track03.cd /path/to/track3.mp3
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mppdec --raw-le /path/to/track4.mpc track04.cd
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cdrskin dev=/dev/hdc blank=fast fs=0 -eject -audio track0[1-4].cd
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Usage example with http://scdbackup.sourceforge.net
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@ -167,7 +170,7 @@ or a device file address as listed by --devices with an accessible drive :
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Set usage of cdrskin with appropriate options rather than cdrecord :
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export SCDBACKUP_CDRECORD="cdrskin -v -v tao_to_sao_tsize=650m eject_device=/dev/cdrw"
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export SCDBACKUP_CDRECORD="cdrskin -v -v tao_to_sao_tsize=650m"
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Run a backup :
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@ -181,12 +184,12 @@ Therefore it has to be defaulted to mode SAO which needs to know the track
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size in advance. non-cdrecord option tao_to_sao_tsize=650m causes each CD
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to get burned up to 650 MB regardless of the payload size.
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Command eject does not work with /dev/sgX and there is no easy way to determine
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a drive's device file address which is suitable for eject.
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So this address has to be supplied by eject_device=... unless your drive is
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/dev/sg0 which is guessed as eject_device=/dev/sr0 .
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Audio features are incomplete in respect to cdrecord. Well prepaired track
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files should get burned flawlessly, thanks to Lorenzo Taylor.
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Builtin extraction of raw audio data from filetypes .au and .wav is not
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implemented yet. See chapter "Audio CD" for details.
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No audio features, no multi session ... Please report your wishes.
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No multi session yet ... Please report your wishes.
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Inspiration and Standard
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@ -272,6 +275,45 @@ dev_translation=+1,0,0+1,1,0
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fs=16m
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Audio CD
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Builtin extraction of raw audio data from filetypes .au and .wav is not
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implemented yet. Lorenzo Taylor enabled option -audio in cdrskin (thanks !)
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and reports neat results with audio data files which are :
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headerless
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44100Hz
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16bit, stereo (or 4-channel if the 4-channel bit is set),
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little-endian byte order
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He proposes to extract them from usual audio formats by commands like
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given above under "Usage examples".
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The existence of cdrecord-builtin .wav extraction seems to have
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hampered the development of a standalone stripping tool. If you know
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a command line that would do the trick, contact me or libburn.pykix.org .
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I myself am not into audio. So libburn-hackers@pykix.org might be the
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best address for requests and bug reports.
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Lorenzo also reports of a frontend tool which he italked into burning
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automatically extracted files via cdrskin:
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http://www.bigpaul.org/burn/
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which in its configuration file burn.conf would need something like this
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in the executables section:
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ogg_decoder_option = -q -d raw -f
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mp3_decoder_option = --quiet --decode -t -o
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cdrecord = /usr/local/bin/cdrskin #or wherever you copied it
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mp3_decoder = /usr/bin/lame
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ogg_decoder = /usr/bin/ogg123
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And in general section:
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external_decoding = yes
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The burning command would then be:
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burn -A -a file1.ogg file2.mp3 file3.mp3 file4.ogg
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This way still has a little flaw caused by cdrskin's misinterpretation
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of option -pad which puts silent gaps between tracks rather than to
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just fill up the final record of a track. We work on it.
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Special compilation variations
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You may get a (super fat) statically linked binary by :
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@ -39,7 +39,7 @@ See option blank= for an example.
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About compliance with *strong urge* of API towards burn_drive_scan_and_grab()
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For a more comprehensive example of the advised way to behave with libburn
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see test/burniso.c test/blank.c test/devices.c .
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see test/libburner.c .
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cdrskin was the initiator of the whitelist functionality within libburn.
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Now it has problems to obviously comply with the new API best practice
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@ -163,9 +163,15 @@ or
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#define Cdrskin_libburn_does_ejecT 1
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#define Cdrskin_libburn_has_drive_get_adR 1
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/* >>> upcoming
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#define Cdrskin_progress_track_does_worK 1
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*/
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#ifdef Cdrskin_new_api_tesT
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/* nothing under test caveat, currently */
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/* switches from old behavior with aquiring drives to new behavior */
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/* (put parasite macros under test caveat here) */
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#endif
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@ -205,7 +211,9 @@ or
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/** Work around the fact that burn_drive_get_status() always reports to do
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track 0 */
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#ifndef Cdrskin_progress_track_does_worK
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#define Cdrskin_progress_track_brokeN 1
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#endif
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/** Work around the fact that a drive interrupted at burn_drive_grab() never
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leaves status BURN_DRIVE_GRABBING */
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@ -1310,7 +1318,7 @@ return:
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2 end program run (--help)
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*/
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{
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int i,ret;
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int i,ret,bragg_with_audio= 0;
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char *value_pt;
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#ifndef Cdrskin_extra_leaN
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@ -1365,6 +1373,9 @@ return:
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if(argc==2)
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{ret= 2; goto final_checks;}
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} else if(strcmp(argv[i],"--bragg_with_audio")==0) {
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bragg_with_audio= 1;
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} else if(strcmp(argv[i],"--demand_a_drive")==0) {
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o->scan_demands_drive= 1;
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@ -1490,6 +1501,8 @@ set_dev:;
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printf(" --allow_setuid disable setuid blocker (very insecure !)\n");
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printf(
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" --any_track allow source_addresses to match '^-.' or '='\n");
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printf(
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" --bragg_with_audio list -audio as supported option with -help\n");
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printf(" --demand_a_drive exit !=0 on bus scans with empty result\n");
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printf(" --devices list accessible devices (tells /dev/...)\n");
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printf(
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@ -1501,8 +1514,10 @@ set_dev:;
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printf(" (might be stalled by a busy hard disk)\n");
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printf(" --drive_not_exclusive do not ask kernel to prevent opening\n");
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printf(" busy drives. Effect is kernel dependend.\n");
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#ifdef Cdrskin_burn_drive_eject_brokeN
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printf(
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" eject_device=<path> set the device address for command eject\n");
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#endif
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printf(" --fifo_disable disable fifo despite any fs=...\n");
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printf(" --fifo_per_track use a separate fifo for each track\n");
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printf(
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@ -1586,12 +1601,16 @@ see_cdrskin_eng_html:;
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fprintf(stderr,"\t-sao\t\tWrite disk in SAO mode.\n");
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fprintf(stderr,"\ttsize=#\t\tannounces exact size of source data\n");
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fprintf(stderr,"\tpadsize=#\tAmount of padding\n");
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if(bragg_with_audio)
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fprintf(stderr,"\t-audio\t\tSubsequent tracks are CD-DA audio tracks\n");
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fprintf(stderr,
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"\t-data\t\tSubsequent tracks are CD-ROM data mode 1 (default)\n");
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fprintf(stderr,"\t-pad\t\tpadsize=30k\n");
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fprintf(stderr,"\t-nopad\t\tDo not pad (default)\n");
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fprintf(stderr,"\t-help\t\tprint this text to stderr and exit\n");
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fprintf(stderr,
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"Option -audio is enabled but does no special .au or .wav processing.\n");
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fprintf(stderr,
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"By default any argument that does not match grep '^-.' or '=' is used\n");
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fprintf(stderr,
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"as track source address. Address \"-\" means stdin. In this case\n");
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@ -2993,6 +3012,9 @@ int Cdrskin_burn_pacifier(struct CdrskiN *skin,
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if(p->track>0)
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skin->supposed_track_idx= p->track;
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#else /* Cdrskin_progress_track_brokeN */
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/* >>> upcomming
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old_track_idx=
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*/
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skin->supposed_track_idx= p->track;
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#endif /* ! Cdrskin_progress_track_brokeN */
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@ -111,7 +111,8 @@ wishes as well as on the development of libburn.</DT>
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<UL>
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<DT></DT>
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<LI>
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No audio features yet.
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No audio features yet. (Note: Option -audio is enabled in cdrskin-0.1.5 as
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offered below, but no beheading of .au or .wav files takes place yet.)
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</LI>
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<LI>
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Burns only a single closed session. No -multi option yet.
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@ -134,7 +135,9 @@ ill peers. Alternatively one can guess the address of the ill device, remove
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rw-permissions and retry the bus scan as non-superuser.
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<LI>
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Burners other than /dev/sg0 and /dev/hdX (i.e. without ide-scsi) need a user
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supplied device address for eject.
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supplied device address for program eject.
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(Note: -eject is now working in libburn-0.2.1 SVN and the workaround described
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here is obsolete with cdrskin-0.1.5 as offered below.)
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</LI>
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</UL>
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</P>
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