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<HTML>
<HEAD>
<META NAME="description" CONTENT="cdrskin, a limited cdrecord compatibility wrapper for libburn">
<META NAME="keywords" CONTENT="cdrskin, libburn, burn, CD, linux, CDR, CD-R, CDRW, CD-RW, cdrecord, compatible, scdbackup, burning">
<META NAME="robots" CONTENT="follow">
<TITLE>cdrskin homepage english</TITLE>
</HEAD>
<BODY BGCOLOR="#F5DEB3" TEXT=#000000 LINK=#0000A0 VLINK=#800000>
<FONT SIZE=+1>
<CENTER>
<P><H2>Homepage of</H2><H1><BR>cdrskin</H1><BR>
<!-- <FONT SIZE=+0><A HREF="cdrskin_ger.html">deutsch (german)</A></FONT> -->
<H2>Limited cdrecord compatibility wrapper for libburn</H2>
</CENTER>
<P>
<H2>Purpose:</H2>
<UL>
<LI>Burns preformatted data to CD-R or CD-RW</LI>
</UL>
</P>
<P>
<HR>
<P>
<H2>Hardware requirements:</H2>
A CD recorder suitable for
<A HREF="http://libburn.pykix.org">libburn.pykix.org</A>
(SCSI or IDE/ATAPI writers compliant to mmc standard).
<BR>
</P>
<P>
<H2>Software requirements :</H2>
<DL>
<DT>Linux kernel 2.4 or higher</DT>
<DD>With kernel 2.4 the drive has to be under ide-scsi emulation.</DD>
<DD>With kernel 2.6 the drive should not be under ide-scsi.</DD>
<DT>libpthread</DT>
<DD>is supposed to be a standard system component.</DD>
</DL>
</P>
<P>
<H2>
GPL software included:<BR>
</H2>
<DL>
<DT>libburn-0.2.1 (inofficially stable SVN snapshot)</DT>
<DD>(by Derek Foreman, Ben Jansens, and team of libburn.pykix.org)</DD>
<DD>transfers data to CD</DD>
</DL>
</P>
<P>
This program system has been tested on Intel/AMD Linux systems only.<BR>
Ports to other usable systems are appreciated. Reports are welcome.
</P>
<HR>
<P>
<H2>Special features:</H2>
<UL>
<LI>Source code is independent of
<A HREF="http://cdrecord.berlios.de/old/private/cdrecord.html">cdrecord</A>
</LI>
</UL>
</P>
<P>
<H2>Commands:</H2>
<DL>
<DT>The goal is to provide some of cdrecord's options in a compatible way.
This has been achieved quite sufficiently for the needs of backup tool
<A HREF="http://scdbackup.sourceforge.net/main_eng.html">scdbackup</A>
and for data CD projects of <A HREF="http://www.k3b.org">K3b</A>
(see <A HREF="#examples">examples</A>).<BR>
Further enhancements depend on people who can describe and discuss their
wishes as well as on the development of libburn.</DT>
<BR><BR>
<DT><A HREF="cdrskin_help">cdrskin -help</A></DT>
<DD>reports the cdrecord compatible options</DD>
<DT><A HREF="cdrskin__help">cdrskin --help</A></DT>
<DD>reports the non-cdrecord options</DD>
<DT><A HREF="http://cdrecord.berlios.de/old/private/man/cdrecord-2.0.html">man cdrecord</A></DT>
<DD>documents the standard for which cdrskin is striving.
<B>Do not bother Joerg Schilling with any cdrskin problems.</B>
(Be cursed if you install cdrskin as "cdrecord" without clearly forwarding
this "don't bother Joerg" demand.)
</DD>
<DT>Currently (and sparsely) supported gestures :</DT>
<DD>$ cdrskin -scanbus</DD>
<DD>$ cdrskin dev=1,1,0 -checkdrive</DD>
<DD>$ cdrskin dev=1,1,0 -atip</DD>
<DD>$ cdrskin -v dev=1,1,0 blank=all eject_device=/dev/cdrom -eject</DD>
<DD>$ cdrskin -v dev=1,1,0 blank=fast eject_device=/dev/cdrom -eject</DD>
<DD>$ cdrskin -v dev=1,1,0 speed=12 fs=8m -sao driveropts=burnfree eject_device=/dev/cdrom -eject padsize=300k my_image.iso</DD>
<DD>$ cdrskin -v dev=1,1,0 ... ... track_1.iso padsize=300k track_2.afio</DD>
<DD>$ find . | afio -oZ - | cdrskin -v dev=1,1,0 fs=32m speed=8 -sao driveropts=burnfree padsize=300k tsize=650m -</DD>
</DL>
</P>
<P>
<H2>Known deficiencies:</H2>
<UL>
<DT></DT>
<LI>
No audio features yet.
</LI>
<LI>
Burns only a single closed session. No -multi option yet.
</LI>
<LI>
No TAO mode and therefore no writing on-the-fly without a predefined
source size.
</LI>
<LI>
cdrskin -scanbus or --devices hangs for quite a while if there is
a CD drive which does not work properly (e.g. because it has individual
problems with DMA).
So if the superuser gets no result with cdrskin --devices then one should
disable DMA with the problematic CD drives
(like: <KBD>hdparm -d0 /dev/hdd</KBD> )
and try again.<BR>
In severe cases it might be necessary to guess the device name /dev/sgN resp.
/dev/hdX of the non-ill burner if it cannot be found otherwise among its
ill peers. Alternatively one can guess the address of the ill device, remove
rw-permissions and retry the bus scan as non-superuser.
<LI>
Burners other than /dev/sg0 and /dev/hdX (i.e. without ide-scsi) need a user
supplied device address for eject.
</LI>
</UL>
</P>
<HR>
<P>
<DL>
<DT>Download as source code (see README):</DT>
<DD><A HREF="cdrskin-0.1.4.tar.gz">cdrskin-0.1.4.tar.gz</A>
(580 KB).
</DD>
<DD>
The "stable" cdrskin tarballs are tested and eventually slightly modified
SVN snapshots from libburn.pykix.org . All modifications are to be re-merged
into that SVN repository.<BR>
cdrskin is part of libburn - full libburn is provided with cdrskin releases.
</DD>
<DD>&nbsp;</DD>
<DT>Download as single x86 binaries (untar and move to /usr/bin/cdrskin):</DT>
<DD><A HREF="cdrskin_0.1.4-x86-suse9_0.tar.gz">
cdrskin_0.1.4-x86-suse9_0.tar.gz</A>, (50 KB),
<DL>
<DD>runs on SuSE 9.0 (2.4.21) , RIP-14.4 (2.6.14) ,
Gentoo (2.6.15 x86_64 Athlon).</DD>
</DL>
<DD><A HREF="cdrskin_0.1.4-x86-suse9_0-static.tar.gz">
cdrskin_0.1.4-x86-suse9_0-static.tar.gz</A>, (250 KB), -static compiled,
<DL>
<DD>runs on SuSE 7.2 (2.4.4), and on the systems above.</DD>
</DL>
</DD>
<DD>&nbsp;</DD>
</DL>
<DL><DT>Documentation:</DT>
<DD><A HREF="README_cdrskin">README</A> a short introduction</DD>
<DD><A HREF="cdrskin__help">cdrskin --help</A> non-cdrecord options</DD>
<DD><A HREF="cdrskin_help">cdrskin -help</A> cdrecord compatible options</DD>
<DD>&nbsp;</DD>
</DL>
<DL><DT>Contact:</DT>
<DD>Thomas Schmitt, <A HREF="mailto:scdbackup@gmx.net">scdbackup@gmx.net</A></DD>
</DL>
<DL><DT>License:</DT>
<DD><A HREF="COPYING_cdrskin">GPL</A>, an <A HREF="http://www.opensource.org/">Open Source</A> approved license</DD>
<DD>&nbsp;</DD>
</DL>
</P>
<HR>
<P>
<DL>
<DT>Development snapshot:</DT>
<DD>&nbsp;</DD>
<DD><A HREF="README_cdrskin_devel">README 0.1.5</A>
<DD><A HREF="cdrskin__help_devel">cdrskin_0.1.5 --help</A></DD>
<DD><A HREF="cdrskin_help_devel">cdrskin_0.1.5 -help</A></DD>
<DD>&nbsp;</DD>
<DD>Maintainers of cdrskin unstable packages please use SVN of
<A HREF="http://libburn.pykix.org"> libburn.pykix.org</A></DD>
<DD>Download: <KBD><B>svn co http://libburn-svn.pykix.org/trunk libburn_pykix</B>
</KBD></DD>
<DD>Build: <KBD><B>cd libburn_pykix ; ./bootstrap ; ./configure ; make</B>
</KBD></DD>
<DD>Build of SVN versions needs <A HREF="http://sources.redhat.com/autobook/">
autotools</A> installed. But after the run of <KBD>./bootstrap</KBD>, only
vanilla tools like make and gcc are needed.</DD>
</DD>
<DD>&nbsp;</DD>
<DT>The following downloads are intended for adventurous end users or
admins with full system souvereignty.</DT>
<DT>Source (./bootstrap is already applied, build tested, for more see above
<A HREF="README_cdrskin_devel">upcoming README</A> ):
</DT>
<DD>
<A HREF="cdrskin-0.1.5.tar.gz">cdrskin-0.1.5.tar.gz</A>
(580 KB).
</DD>
<DT>Binary (untar and move to /usr/bin/cdrskin):</DT>
<DD><A HREF="cdrskin_0.1.5-x86-suse9_0.tar.gz">
cdrskin_0.1.5-x86-suse9_0.tar.gz</A>, (50 KB).
</DD>
<DD><A HREF="cdrskin_0.1.5-x86-suse9_0-static.tar.gz">
cdrskin_0.1.5-x86-suse9_0-static.tar.gz</A>, (250 KB)
</DD>
</DL>
</P>
<HR>
<P>
Many thanks to Joerg Schilling for cdrecord,
<BR>
and to Derek Foreman and Ben Jansens for creating libburn.
<BR>
Historic versions based on Derek's and Ben's
<A HREF="http://icculus.org/burn">icculus.org/burn</A> :<BR>
<A HREF="cdrskin-0.1.2.0.2.ts.tar.gz">cdrskin-0.1.2.0.2.ts.tar.gz</A><BR>
<A HREF="cdrskin-0.1.3.0.2.ts.tar.gz">cdrskin-0.1.3.0.2.ts.tar.gz</A>
</P>
<HR>
<A NAME="examples">
<P>
<DL>
<DT>Example for a setup of device permissions. To be done by the superuser:</DT>
<DT>(CD devices which offer no r-permission are invisible to normal users.)</DT>
<DT>(CD devices which offer no w-permission are not useable.)</DT>
<DD># <KBD><B>cdrskin --devices</B></KBD></DD>
<DD><KBD>...</KBD></DD>
<DD><KBD>0&nbsp; dev='/dev/sg0'&nbsp; rwrwr- :&nbsp; 'TEAC' 'CD-ROM CD-532S'</KBD></DD>
<DD><KBD>1&nbsp; dev='/dev/hdc'&nbsp; rwrw-- :&nbsp; 'LITE-ON' 'LTR-48125S'</KBD></DD>
<DD># <KBD><B>chmod a+rw /dev/sg0 /dev/hdc</B></KBD></DD>
</DL>
</P>
<HR>
<A NAME="k3b">
<P>
<A HREF="k3b_on_cdrskin.html">
Example how to setup K3b to use cdrskin for burning data CD projects.
<A><BR>
(<A HREF="http://www.k3b.org">K3b</A>
is a GUI frontend which uses cdrecord for CD burning.)
</P>
<HR>
<A NAME="scdbackup">
<P>
<DL>
<DT>Example for a test session with a cdrecord based scdbackup installation:</DT>
<DD>$ <KBD><B>cdrskin -scanbus</B></KBD></DD>
<DD><KBD>...</KBD></DD>
<DD><KBD>scsibus1:</KBD></DD>
<DD><KBD>&nbsp;&nbsp;&nbsp; 1,0,0 &nbsp;&nbsp; 0)&nbsp; 'TEAC' 'CD-ROM CD-532S' '?' Removable CD-ROM</KBD></DD>
<DD><KBD>scsibus2:</KBD></DD>
<DD><KBD>&nbsp;&nbsp;&nbsp; 2,2,0 &nbsp;&nbsp; 1)&nbsp; 'LITE-ON' 'LTR-48125S' '?' Removable CD-ROM</KBD></DD>
<DD>$ <KBD><B>export SCDBACKUP_SCSI_ADR="2,2,0"</B></KBD></DD>
<DD>$ <KBD><B>export SCDBACKUP_CDRECORD="cdrskin -v -v tao_to_sao_tsize=650m eject_device=/dev/cdrecorder"</B></KBD></DD>
<DD>(eject_device= has to be the appropriate address for program eject)</DD>
<DD>$ <KBD><B>scdbackup_home</B></KBD></DD>
</DL>
<DL>
<DT>Example for a permanent configuration of cdrskin based scdbackup</DT>
<DD>$ <KBD><B>cd scdbackup-0.8.6/inst</B></KBD></DD>
<DD>$ <KBD><B>export SCDBACKUP_USE_CDRSKIN=1</B></KBD></DD>
<DD>$ <KBD><B>export SCDBACKUP_EJECT_ADR=/dev/cdrecorder</B></KBD></DD>
<DD>$ <KBD><B>./CONFIGURE_CD</B></KBD></DD>
<DD><KBD>...</KBD></DD>
<DD><KBD>cdrskin 0.1.2 : limited cdrecord compatibility wrapper for libburn</KBD></DD>
<DD><KBD>...</KBD></DD>
<DD><KBD> ------------------- SCSI devices. To be used like &nbsp;&nbsp; 0,0,0</KBD></DD>
</DL>
If your system is stricken with some ill CD device then this can stall
and you will have to press <KBD>Ctrl+C</KBD> to abort.
In this case, you may execute
<KBD>export SCDBACKUP_NO_SCANBUS=1</KBD>
and try again.
<DL>
<DT></DT>
<DD><KBD>&nbsp;&nbsp;&nbsp; 1,0,0 &nbsp;&nbsp; 0)&nbsp; 'TEAC' 'CD-ROM CD-532S' '?' Removable CD-ROM</KBD></DD>
<DD><KBD>&nbsp;&nbsp;&nbsp; 2,2,0 &nbsp;&nbsp; 1)&nbsp; 'LITE-ON' 'LTR-48125S' '?' Removable CD-ROM</KBD></DD>
<DD><KBD>------------------- end of SCSI device list</KBD></DD>
<DD><KBD>...</KBD></DD>
<DD><KBD>&nbsp;&nbsp;&nbsp; * Your cdrecord offers -driveropts=burnfree with your recorder.</KBD></DD>
<DD><KBD>...</KBD></DD>
<DD><KBD>scdbackup for CD 0.8.6 : First stage of installation done.</KBD></DD>
<DD><KBD>...</KBD></DD>
<DD><KBD>Now give it a try. Run : scdbackup_home</KBD></DD>
<DD>$ <KBD><B>unset SCDBACKUP_USE_CDRSKIN SCDBACKUP_EJECT_ADR</B></KBD></DD>
</DL>
<DL>
<DT>To get back to using cdrecord :</DT>
<DD>$ <KBD><B>cd scdbackup-0.8.6/inst</B></KBD></DD>
<DD>$ <KBD><B>export SCDBACKUP_USE_CDRSKIN=0</B></KBD></DD>
<DD>$ <KBD><B>./CONFIGURE_CD</B></KBD></DD>
<DD><KBD>...</KBD></DD>
<DD>$ <KBD><B>unset SCDBACKUP_USE_CDRSKIN</B></KBD></DD>
</DL>
</P>
<HR>
<A NAME="cdrecord">
<P>
<CENTER><H3>About the relationship of cdrecord and cdrskin</H3></CENTER>
First of all: this relationship is single sided, as cdrskin has to be aware of
cdrecord but not vice versa.
<BR>
<BR>
I am a long time user of cdrecord and it works fine for me.
Especially i do appreciate its write mode -tao which allows to pipe arbitrary
data on CD and CD-RW via stdin. cdrecord is reliable, versatile and well
maintained. So for me - there would be not problem with it.
<BR>
But the author of cdrecord and the Linux kernel people foster a very hostile
relationship. Ok, that's their business, not mine (or ours if you are with me).
One has to be aware, though, that this relationship might lead to a situation
where cdrecord is no longer available for certain Linux kernels.
<BR>
To have my own project prepared for such a time, i began to implement its
cdrecord gestures on top of libburn.
From now on i invite other interested users of cdrecord to teach cdrskin
the gestures necessary for their cdrecord applications.
Contact me. Let's see what we can achieve.
<BR>
<BR>
I am aware that libburn and cdrskin still have way to go until you can simply
install cdrskin as cdrecord and may expect any application to run with it.
Currently i do not encourage this approach, but of course such a replacement
opportunity is the long term goal of a cdrecord compatibility wrapper.
<BR>
<BR>
It is very important to me that this project is not perceived as hostile
towards Joerg Schilling and his ongoing work.
I owe him much. For cdrecord, for mkisofs, for star. Chapeau.
<BR>
</P>
<HR>
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<HR>
<DL>
<DT>Links to my other published software projects :
<DD><A HREF=http://scdbackup.webframe.org/main_eng.html>
scdbackup, multi volume CD backup</A>
<DL><DD><A HREF=http://scdbackup.sourceforge.net/main_eng.html>
(a second source of above)</A></DL>
<DD><A HREF=http://stic.webframe.org>Some Tools for Image Collectors</A>
<DL><DD><A HREF=http://stic.sourceforge.net>(a second source of above)</A></DL>
<DD><A HREF=http://scdbackup.webframe.org/pppoem>
pppoem, a DSL throughput monitor (mainly for Linux kernel 2.4)</A>
</DL>
<BR><BR>
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