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cdrskin

Limited cdrecord compatibility wrapper for libburn

Purpose:

Burns preformatted data to CD, DVD, and BD media:
CD-R, DVD-R, DVD+R, DVD+R/DL, BD-R, CD-RW, DVD-RW, DVD-RAM, DVD+RW, BD-RE

Direct hop to download links ->

Hardware requirements:

About any CD, DVD, or BD recorder produced in the recent ten years.
libburn supports recorders which are compliant to standards MMC-1 for CD and MMC-5 for DVD or BD. Linux and FreeBSD allow to access drives connected via SCSI, PATA (aka IDE, ATA), USB, or SATA.

Software requirements :

Linux with kernel 2.4 or higher (and libc, of course) :: With kernel 2.4 an ATA drive has to be under ide-scsi emulation.; With kernel 2.6 the drive should not be under ide-scsi.
or FreeBSD (with libc, of course) :: ATA and SATA drives need atapicam running.; libcam has to be installed.
libpthread: is supposed to be a standard system component.

GPL software included:

libburn-0.7.6: (founded by Derek Foreman and Ben Jansens, developed and maintained since August 2006 by Thomas Schmitt from team of libburnia-project.org); transfers data to CD, DVD, BD

This program system has been tested on Intel/AMD Linux and FreeBSD systems only.
Ports to other usable systems are appreciated. Reports are welcome.

Special features:

Source code is independent of cdrecord

Commands:

The most common options of cdrecord for data and audio on CD media are provided in a compatible way. On all DVD media except DVD-R DL, cdrskin is able to perform any recording job which is possible with cdrecord. Other than with cdrecord, option -multi is supported with many DVD types and BD-R. Write mode -tao works with anything but quickly blanked DVD-RW.
Get an overview of drives and their addresses: # cdrskin -scanbus; # cdrskin dev=ATA -scanbus; # cdrskin --devices
Being superuser avoids permission problems with /dev/srN resp. /dev/hdX .
Ordinary users should then get granted rw access to the /dev files as listed by option --devices.

Get info about a particular drive or loaded media:: $ cdrskin dev=0,1,0 -checkdrive; $ cdrskin dev=ATA:1,0,0 -v -atip; $ cdrskin dev=/dev/hdc -minfo
Prepare CD-RW or DVD-RW for re-use, DVD-RAM or BD-RE for first use:: $ cdrskin -v dev=/dev/sg1 blank=as_needed -eject
Format DVD-RW to avoid need for blanking before re-use:: $ cdrskin -v dev=/dev/sr0 blank=format_overwrite
De-format DVD-RW to make it capable of multi-session again:: $ cdrskin -v dev=/dev/sr0 blank=deformat_sequential
Write ISO-9660 filesystem image as only one to blank or formatted media:: $ cdrskin -v dev=/dev/hdc speed=12 fs=8m \; blank=as_needed -eject padsize=300k my_image.iso
Write compressed afio archive on-the-fly:: $ find . | afio -oZ - | \; cdrskin -v dev=0,1,0 fs=32m speed=8 \; blank=as_needed padsize=300k -
Write several sessions to the same CD, DVD-R[W] or DVD+R[/DL]:: $ cdrskin dev=/dev/hdc -v padsize=300k -multi 1.iso; $ cdrskin dev=/dev/hdc -v padsize=300k -multi 2.iso; $ cdrskin dev=/dev/hdc -v padsize=300k -multi 3.iso; $ cdrskin dev=/dev/hdc -v padsize=300k 4.iso
Get multi-session info for option -C of program mkisofs:: $ c_values=$(cdrskin dev=/dev/sr0 -msinfo 2>/dev/null); $ mkisofs ... -C "$c_values" ...
Inquire free space on media for a -multi run:: $ x=$(cdrskin dev=/dev/sr0 -multi \; --tell_media_space 2>/dev/null); $ echo "Available: $x blocks of 2048 data bytes"
Accelerate BD-RE writing to full nominal speed after the first 250 MB: $ cdrskin ... stream_recording=250m ...
Write audio tracks to CD:: $ cdrskin -v dev=ATA:1,0,0 speed=48 -sao \; track1.wav track2.au -audio -swab track3.raw
Get overview of the cdrecord compatible options:: $ cdrskin -help
Get overview of the non-cdrecord options:: $ cdrskin --help
Read the detailed manual page:: $ man cdrskin

Read about the standard for which cdrskin is striving:: $ man cdrecord; Do not bother Joerg Schilling with any cdrskin problems. (Be cursed if you install cdrskin as "cdrecord" without clearly forwarding this "don't bother Joerg" demand.)

Learn to know a more versatile way to burn ISO 9660 formatted data: Standalone ISO 9660 multi-session CD/DVD/BD tool xorriso.

Download as source code (see README):: cdrskin-0.7.6.pl00.tar.gz (820 KB).; The cdrskin tarballs are source code identical with libburn releases of the same version number. They get produced via a different procedure, though.
cdrskin is part of libburn - full libburn is provided with cdrskin releases.

Documentation:: README an introduction; cdrskin --help non-cdrecord options; cdrskin -help cdrecord compatible options; man cdrskin the manual page

Contact:: Thomas Schmitt, scdbackup@gmx.net; libburn development mailing list, libburn-hackers@pykix.org

License:: GPL, an Open Source approved license

Enhancements towards previous stable version cdrskin-0.7.4.pl00:

Made FreeBSD system adapter safe from mutal burn spoiling and drive deadlock
Experimental system adapter via GNU libcdio on X/Open systems
Experimentally using FreeBSD system adapter for Debian kfreebsd

Bug fixes towards cdrskin-0.7.4.pl00:

none

Development snapshot, version 0.7.7 :

Enhancements towards current stable version 0.7.6.pl00:

none yet

Bug fixes towards cdrskin-0.7.6.pl00:

none yet

README 0.7.7

cdrskin_0.7.7 --help

cdrskin_0.7.7 -help

man cdrskin (as of 0.7.7)

Maintainers of cdrskin unstable packages please use SVN of libburnia-project.org

Download: svn co http://svn.libburnia-project.org/libburn/trunk libburn

Build: cd libburn ; ./bootstrap ; ./configure --prefix /usr ; make ; cdrskin/compile_cdrskin.sh

Build of SVN versions needs autotools of at least version 1.7 installed. But after the run of ./bootstrap, only vanilla tools like make and gcc are needed.

The following download is intended for adventurous end users or admins with full system souvereignty.

Source (./bootstrap is already applied, build tested, for more see upcoming README ):

cdrskin-0.7.7.tar.gz (820 KB).

Many thanks to Joerg Schilling for cdrecord,
and to Derek Foreman and Ben Jansens for creating libburn.
Historic versions based on Derek's and Ben's icculus.org/burn :
cdrskin-0.1.2.0.2.ts.tar.gz
cdrskin-0.1.3.0.2.ts.tar.gz
Very special thanks to Andy Polyakov whose dvd+rw-tools provide libburn with invaluable examples on how to deal with DVD and BD media.

Example for a setup of device permissions.
Newer Linux distros enable rw-access for the desktop user automatically. So try as normal user whether all your drives are found. CD devices which offer no rw-permission will stay invisible.: $ cdrskin --devices
If not all desired drives show up, become superuser and do again:: # cdrskin --devices; ...; 0 dev='/dev/sr0' rwr-r- : 'TEAC' 'CD-ROM CD-532S'; 1 dev='/dev/hdc' rwrw-- : 'LITE-ON' 'LTR-48125S'
Most simple and most insecure is this equivalent of the usual cdrecord permissions u+s,a+x:: # chmod a+rw /dev/sr0 /dev/hdc
More secure is to put the permitted users into a group like "floppy", to assign /dev/sr0 /dev/hdc to this group, and to allow rw-access only to group members.: # vi /etc/group; ...; floppy:x:19:thomas,scdbackup; ...; # chgrp floppy /dev/sr0 /dev/hdc; # chmod g+rw /dev/sr0 /dev/hdc