Cdrtools

Last updated

cdrtools
Original author(s) Jörg Schilling, Eric Youngdale, Heiko Eißfeldt, James Pearson
Developer(s) schilytools team
Initial release4 February 1996;27 years ago (1996-02-04)
Stable release 3.02 (18 September 2022 (2022-09-18)) [±] [1]
Preview release 3.02a09 (10 December 2017 (2017-12-10)) [±] [2]
Repository
Written in C
Operating system Cross-platform
Available inEnglish
Type Optical disc authoring software
License CDDL, GNU GPL and GNU LGPL
Website codeberg.org/schilytools/schilytools

cdrtools (formerly known as cdrecord) is a collection of independent projects of free software/open source computer programs.

Contents

The project was maintained for over two decades by Jörg Schilling, who died on October 10, 2021. [3] [4]

Because of some licensing issues, [5] there is also a Debian fork of an older version of cdrtools called cdrkit.

Features

The most important parts of the package are cdrecord, a console-based burning program; cdda2wav, a CD audio ripper that uses libparanoia; and mkisofs, a CD/DVD/BD/UDF/HFS filesystem image creator. As these tools do not include any GUI, many graphical front-ends have been created.

The collection includes many features for CD, DVD and Blu-ray disc writing such as:

History

Origins and name change

The first releases of cdrtools were called cdrecord because they only included the cdrecord tool and a few companion tools, but not mkisofs nor cdda2wav. A copy of mkisofs, created in 1993 by Eric Youngdale for Yggdrasil Linux, was incorporated in 1997. [7] [8] In 1998, a copy of an experimental version of cdda2wav, created by Heiko Eißfeldt [9] [8] was included in the cdrecord package. [10] [11]

In 1999 the project started to be called cdrtools [12] [10] [13] to better reflect the fact that it had become a collection of tools.

DVD and Blu-ray disc writing support

DVD writing support (cdrecord-ProDVD) in cdrecord started in early 1998, at the request of the data archivists of the European Southern Observatory. [14] [15] [16] [ discuss ] But since the relevant information required a non-disclosure agreement and DVD writers were not publicly available, it was not included in the source code.[ citation needed ] In 2002, Jörg Schilling started offering free license keys to the closed-source variant cdrecord-ProDVD for educational, and research use, shortly thereafter also for private use. [17] [18] Unregistered free licenses were initially limited to single-speed writing and would expire every year. [18] On 15 May 2006, support for DVD writing was added to the open-source version 2.01.01a09 after switching the license to CDDL; thereby removing the need to get a license key. [17] [19] Blu-ray disc support was added starting 2007. [20]

The lack of open-source DVD writing support in 2001 led to heated discussions on the mailing lists, [17] and to a number of unofficial patches for supporting the Pioneer DVD-R A03, the first DVD writer to reach mass market, and forks of cdrecord: Mandrake shipped a version called cdrecord-dvdhack, [21] whereas Redhat had dvdrecord. [22]

Hardware access controversy

Unlike cdrkit and libburnia, which use device files to access the hardware, cdrtools uses a different method known as CAM (for Common Access Method), [23] which is available on many operating systems, including some which lack device files or only allow the kernel to access them. This difference has turned into a controversy: some Linux users claim that the method used by cdrtools is not appropriate, while some Linux users claim that the users of cdrtools do not need to know which method is used.[ citation needed ]

In cdrtools, burning optical media (such as CDs, DVDs and Blu-rays discs) is done through the SCSI interface. Users of systems with more than one burning device need to provide a SCSI device (which is identified by a triplet of numbers, scsibus,target,lun). Users of systems with only one burning device, however, do not need to specify the SCSI device since cdrtools is able to find it. By 2002 more and more burners were using the ATAPI interface. Linux 2.6 allowed the users to detect the SCSI ID of a device from its UNIX device path (/dev/hdX) and a patch was published that made identifying the burner device for cdrecord simpler by allowing the user to specify the /dev/hdX device name (or even default to a udev managed link such as /dev/cdrw). Schilling, however, rejected this approach as well as other modifications used by Linux distributions, with the rationale that it would make the software more complex and less portable as this function was not available on other UNIX systems. [24] Linus Torvalds states that SCSI LUNs should not be used for addressing devices on Linux, [25] because these numbers are not unique, [25] and do not make sense for many devices anymore [26] (many devices will report 0:0:0 fake numbers [26] ). Instead Torvalds recommends that devices should be addressed via their UUID, physical connection, or an alias symlink [26] as managed by udev on Linux. Torvalds pointed out that the ioctl's have been kept to ensure cdrecord compatibility [27] and do not return a meaningful value. [28]

License compatibility controversy

By 2004, Linux distributions were maintaining a number of unofficial changes  such as allowing the use of /dev/hdX device names and (limited) DVD writing support  that were rejected by Schilling, [24] who repeatedly demanded that distributions stop shipping "bastardized and defective" versions of his "legal original software". [29] Starting with version 2.01.01a09 in May 2006, most code from cdrtools has been relicensed under the CDDL, while mkisofs remains licensed under the GPL. [30] This change led to an ongoing disagreement about whether distribution or use of precompiled cdrtools binaries is legally possible (the GPL permits collective works, but not derivative works; and the Makefiles used to build mkisofs are CDDL licensed). The following are one-sentence summaries of the different positions:

As a result of this controversy:

Inclusion into toolset Schily-Tools

Cdrtools are part of Jörg Schilling's toolset Schily-Tools which was originally distributed on SourceForge. [49]

Schilling stopped updating the cdrtools-only alpha and stable branch in 2017 with version 3.02a9; [50] version 3.02a10 and higher are only included in the source package schilytools.

The "Schily" Tool Box is a set of tools written or managed by Jörg Schilling. It includes the programs: cdrecord, cdda2wav, readcd, mkisofs, smake, bsh, btcflash, calc, calltree, change, compare, count, devdump, dmake based on SunPro Make, hdump, isodebug, isodump, isoinfo, isovfy, label, mt, obosh, od, p, POSIX patch, pbosh, sccs, scgcheck, scpio, sdd, sfind, sformat, smake, sh/bosh (Bourne sh), star, star_sym, strar, suntar, gnutar, tartest, termcap, and ved.

The final version of Schily-Tools published by Jörg Schilling himself is the 2021-09-18 release. [51] After his death, development of Schily-Tools has been taken up by a group of volunteers. Instead of hosting it on SourceForge, it is hosted on a-not-for-profit platform, Codeberg. To mark his passing, his cdrtools final version, 3.02a10 (where the a indicates the software is semantically alpha) was declared to be the new stable version 3.02 with no substantial changes. [52]

Version history

Version history of cdrtools
Project namePreview releasesStable releaseNotes
firstlastversiondate
cdrecord1.001996-02-04
1.011996-10-04
1.021996-12-20
1.031997-05-16
1.041997-05-23
1.5a11.5a9 1.05 1997-09-15
1.6a011.6a15 1.06 1998-04-18
1.6.1a11.6.1a7 1.06.1 1998-10-19
1.8a011.8a40 1.08 2000-01-28
1.8.1a011.8.1a09 1.08.1 2000-04-27
1.9a011.9a05 1.09 2000-07-20
cdrtools1.10a011.10a19 1.10 2001-04-22
1.11a01
2.0pre1
1.11a40
2.0pre3
2.00 2002-12-25 DVD-Video support since July 2002. [53]
2.00.3 2003-05-28
2.01a012.01a38 2.01 2004-09-09This series was the last GPL-licensed version and was used as base for the fork cdrkit.
2.01.01a012.01.01a80 3.00 [54] [55] 2010-06-02In May 2006, most parts of cdrtools were switched to the CDDL. [30] Blu-ray support is available since July 2007 [56]
3.01a013.01a31 3.01 [6] 2015-08-26 [6]
3.02a013.02a09 [2] 3.022022-09-18 DVD-Audio support since December 2015. [57]

See also

Forks

Software that can use cdrtools

Related Research Articles

<span class="mw-page-title-main">Linux distribution</span> Operating system based on the Linux kernel

A Linux distribution is an operating system made from a software collection that includes the Linux kernel and often a package management system. Linux users usually obtain their operating system by downloading one of the Linux distributions, which are available for a wide variety of systems ranging from embedded devices and personal computers to powerful supercomputers.

<span class="mw-page-title-main">YaST</span> Installation and configuration tool for openSUSE and SUSE Linux

YaST is a Linux operating system setup and configuration tool.

The Common Development and Distribution License (CDDL) is a free and open-source software license, produced by Sun Microsystems, based on the Mozilla Public License (MPL). Files licensed under the CDDL can be combined with files licensed under other licenses, whether open source or proprietary. In 2005 the Open Source Initiative approved the license. The Free Software Foundation (FSF) considers it a free software license, but one which is incompatible with the GNU General Public License (GPL).

Technical variations of Linux distributions include support for different hardware devices and systems or software package configurations. Organizational differences may be motivated by historical reasons. Other criteria include security, including how quickly security upgrades are available; ease of package management; and number of packages available.

Squashfs is a compressed read-only file system for Linux. Squashfs compresses files, inodes and directories, and supports block sizes from 4 KiB up to 1 MiB for greater compression. Several compression algorithms are supported. Squashfs is also the name of free software, licensed under the GPL, for accessing Squashfs filesystems.

This comparison only covers software licenses which have a linked Wikipedia article for details and which are approved by at least one of the following expert groups: the Free Software Foundation, the Open Source Initiative, the Debian Project and the Fedora Project. For a list of licenses not specifically intended for software, see List of free-content licences.

<span class="mw-page-title-main">Metalink</span> File format that describes one or more computer files available for download

Metalink is an extensible metadata file format that describes one or more computer files available for download. It specifies files appropriate for the user's language and operating system; facilitates file verification and recovery from data corruption; and lists alternate download sources.

<span class="mw-page-title-main">PulseAudio</span> Sound server for Unix-like operating systems

PulseAudio is a network-capable sound server program distributed via the freedesktop.org project. It runs mainly on Linux, including Windows Subsystem for Linux on Microsoft Windows and Termux on Android; various BSD distributions such as FreeBSD, OpenBSD, and macOS; as well as Illumos distributions and the Solaris operating system. It serves as a middleware in between applications and hardware and handles raw PCM audio streams.

<span class="mw-page-title-main">Linux</span> Family of Unix-like operating systems

Linux is a family of open-source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991, by Linus Torvalds. Linux is typically packaged as a Linux distribution (distro), which includes the kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses and recommends the name "GNU/Linux" to emphasize the use and importance of GNU software in many distributions, causing some controversy.

cdrkit is a collection of computer programs for CD and DVD authoring that work on Unix-like systems. cdrkit is released under the GNU General Public License version 2. Fedora, Gentoo Linux, Mandriva Linux, and Ubuntu all include cdrkit. Joerg Jaspert is cdrkit's leader and release manager.

Comparison of the Java and .NET platforms.

<span class="mw-page-title-main">Liberation fonts</span> Open-source font superfamily

Liberation is the collective name of four TrueType font families: Liberation Sans, Liberation Sans Narrow, Liberation Serif, and Liberation Mono. These fonts are metrically compatible with the most popular fonts on the Microsoft Windows operating system and the Microsoft Office software package, for which Liberation is intended as a free substitute. The fonts are default in LibreOffice.

<span class="mw-page-title-main">RPM Package Manager</span> Package management system

RPM Package Manager (RPM) is a free and open-source package management system. The name RPM refers to the .rpm file format and the package manager program itself. RPM was intended primarily for Linux distributions; the file format is the baseline package format of the Linux Standard Base.

<span class="mw-page-title-main">WeeChat</span> IRC client

WeeChat is a free and open-source Internet Relay Chat client that is designed to be light and fast. It is released under the terms of the GNU GPL-3.0-or-later and has been developed since 2003.

<span class="mw-page-title-main">Linux-libre</span> Version of the Linux kernel without proprietary code

Linux-libre is a modified version of the Linux kernel that contains no binary blobs, obfuscated code, or code released under proprietary licenses. In the Linux kernel, they are mostly used for proprietary firmware images. While generally redistributable, binary blobs do not give the user the freedom to audit, modify, or, consequently, redistribute their modified versions. The GNU Project keeps Linux-libre in synchronization with the mainline Linux kernel.

<span class="mw-page-title-main">KVIrc</span> IRC Client

KVIrc is a graphical IRC client for Linux, Unix, Mac OS and Windows. The name is an acronym of K Visual IRC in which the K stands for a dependency to KDE, which became optional from version 2.0.0. The software is based on the Qt framework and its code is released under a modified GNU General Public License.

dracut (software) Software to automate the Linux boot process

Dracut is a set of tools that provide enhanced functionality for automating the Linux boot process. The tool named dracut is used to create a Linux boot image (initramfs) by copying tools and files from an installed system and combining it with the Dracut framework, which is usually found in /usr/lib/dracut/modules.d.

References

  1. Clausecker, Robert (19 September 2022). "New features with AN-2022-09-18". The schilytools project. Retrieved 16 October 2022.
  2. 1 2 Schilling, Jörg (10 December 2017). "cdrtools 3.02a09 announcement". cdrtools.sourceforge.net. Retrieved 21 December 2017.
  3. "RIP Jörg Schilling". Archived from the original on 13 October 2021. I have received message from his family that Jörg Schilling has passed away
  4. "Fraunhofer FOKUS | IT original Jörg Schilling has passed away". www.fokus.fraunhofer.de. Archived from the original on 1 January 2022. Retrieved 1 January 2022.
  5. "cdrtools - a tale of two licenses". lwn.net.
  6. 1 2 3 Schilling, Jörg (26 August 2015). "cdrtools 3.01 announcement and release notes". cdrtools.sourceforge.net. Retrieved 28 August 2015.
  7. "Announcing mkisofs 1.13".
  8. 1 2 "CDRTOOLS = cdrecord + cdda2wav + mkisofs".
  9. "Cdda2wav".
  10. 1 2 "cdrecord-1.8a10 (cdrtools) ready".
  11. "NEW features of cdrecord-1.8a6".
  12. "cdrtools-1.8a19 ready (cdrecord+cdda2wav+mkisofs)".
  13. "Information for build cdrtools-2.01-11.fc7".
  14. "Using DVD Technology for Archiving Astronomical Data" (PDF). European Southern Observatory.
  15. "The Prospects of DVD-R for Storing Astronomical Archive Data". Astronomical Society of the Pacific - Provided by NASA Astrophysics Data System.
  16. "Using DVD Technology for Archiving Astronomical Data (cont'd)". Astronomical Society of the Pacific - Provided by NASA Astrophysics Data System.
  17. 1 2 3 "Re: cdrecord floating point exception".
  18. 1 2 "cdrecord will not burn DVD ISO's".
  19. "README".
  20. "Changelog" (in German).
  21. "Support / Security / Advisories / Mandrakelinux 8.2 / MDKA-2002:011-1 / Mandriva". Mandriva . Retrieved 16 October 2014. cdrecord-dvdhack-1.11-0.a31.1.1mdk.ppc.rpm shows that Mandrake maintained a "cdrecord-dvdhack" version.
  22. "dvdrtools - dvdrecord". Archived from the original on 1 December 2002. Retrieved 2014-04-12.
  23. "Common Access Method Transport and SCSI Interface Module". International Committee for Information Technology Standards. 29 December 2011. Retrieved 24 January 2016.
  24. 1 2 Corbet, Jonathan (11 August 2004). "The value of middlemen". LWN.net . Retrieved 7 April 2014.
  25. 1 2 Torvalds, Linus (27 March 2006). "Re: [PATCH] Move SG_GET_SCSI_ID from sg to scsi". LKML . Retrieved 22 October 2015. the SCSI ID simply doesn't make sense to [Many (most) Linux devices] and they have none. So it's _not_ a unique ID.
  26. 1 2 3 Torvalds, Linus (27 March 2006). "Re: [PATCH] Move SG_GET_SCSI_ID from sg to scsi". LKML . Retrieved 22 October 2015.
  27. Torvalds, Linus (27 March 2006). "Re: [PATCH] Move SG_GET_SCSI_ID from sg to scsi". LKML . Retrieved 22 October 2015. it does a few ioctl's that cdrecord wanted [...] does NOT try to claim that those numbers "mean" anything [...] BUS/ID/LUN crap really doesn't make sense for the majority of devices out there. Never has, never will.
  28. "Linux source code, scsi_ioctl.c, function scsi_get_idlun". Linux Cross Reference. Retrieved 22 October 2015. return put_user(0, p); [i.e. they always yield 0]
  29. Corbet, Jonathan (12 August 2009). "The unending story of cdrtools". LWN.net . Retrieved 26 February 2014.
  30. 1 2 The license change took place on 15 May 2006, when cdrtools-2.01.01a09 was released. (Source: AN-2.01.01a09)
  31. Corbet, Jonathan. "cdrtools - a tale of two licenses". LWN.net . Retrieved 4 August 2007.
  32. Schilling, Joerg (27 June 2011). "Comment 17 for bug 213215". Ubuntu bug tracking. Nobody is violating a license for distributing cdrtools either in source or in binary form.
  33. 1 2 "Forbidden items - FedoraProject". fedoraproject.org.
  34. 1 2 "Re: [Fedora-legal-list] Legal CD/DVD/BD writing software for RedHat and Fedora". www.redhat.com.
  35. "#377109 - RM: cdrtools -- RoM: non-free, license problems - Debian Bug report logs" . Retrieved 4 August 2007.
  36. "Information for build cdrtools-2.01-11.fc7" . Retrieved 4 August 2007. moved back to version 2.01 (last GPL version), due to incompatible license issues
  37. "Minutes from the Technical Board meeting, 2008-08-26". 26 August 2008. Retrieved 15 September 2008.
  38. "cdrkit (fork of cdrtools) uploaded to Debian, please test" . Retrieved 4 August 2007.
  39. "591778 – app-cdr/cdrkit removal request". bugs.gentoo.org.
  40. "SlackBuilds.org - cdrkit". slackbuilds.org.
  41. "Welcome to vtown, volkerdi's friendly takeover of alienBOB's ktown Plasma 5 packages - testing/packages/vtown/deps/libburn-1.5.2.pl01-x86_64-1_vtown_1.txz: Added".
  42. "Mandriva Cooker : The Inside Man V" . Retrieved 4 August 2007.
  43. "Mandriva SA official blog: Mandriva Linux will return to the community". Mandriva. 17 May 2012. Archived from the original on 23 May 2015. Retrieved 2015-12-13.
  44. Packages of cdrtools for OpenMandriva Lx are available from both the OpenMandriva Association at github.com and RosaLabs's auto build farms at abf.rosalinux.ru
  45. "openSUSE 10.3 Release Notes". www.novell.com.
  46. "[openFATE 311186] original cdrtools - openSUSE Features". openSUSE Mailing Lists. 22 December 2013.
  47. "Joerg Schilys cdrtools". openSUSE Build Service. 14 May 2013.
  48. "CDRTools.org : The unofficial cdrtools website to ease building cdrtools from source" . Retrieved 16 November 2014.
  49. "The official Shily-Tools project website:" http://schilytools.sourceforge.net/
  50. "cdrecord | Release notes for cdrecord at SourceForge.net". sourceforge.net.
  51. "Schily Tools: Browse files".
  52. Clausecker, Robert (18 August 2022). "cdrecord: bump version to 3.02". codeberg.org. The schilytools project. Retrieved 16 October 2022.
  53. Full DVD-Video support (in mkisofs), contributed by Olaf Beck, was added to preview release 1.11a27 on 21 July 2002 (Source: AN-1.11a27) and to stable release 2.00 on 25 December 2002 (Source: AN-2.00)
  54. Schilling, Jörg (18 May 2010). "cdrtools 3.00 release announcement" . Retrieved 18 May 2010.
  55. Schilling, Jörg (2 June 2010). "cdrtools 3.00 release notes" . Retrieved 2 June 2010.
  56. Support for Blu-ray Discs was added on 4 July 2007 to cdrtools 2.01.01a29. (Source: AN-2.01.01a29)
  57. DVD-Audio support (in mkisofs), contributed by the DVD audio Tools project credits to authors Jerome Brock and Fabrice Nicol are in source file mkisofs/udf.c and available in the external packages folder of dvda-author as a patch against cdrtools 3.00, has been refreshed and included in cdrtools 3.02a04 on 16 December 2015. (Source: AN-3.02a04)
  58. "dvdrtools - Summary". GNU Savannah. 28 January 2002. Retrieved 24 January 2016. dvdrtools is a fork of cdrtools/cdrecord with support for writing to DVDs.
  59. "dvdrtools - News: dvdrtools 0.2.0 released". GNU Savannah. 5 February 2005. Retrieved 24 January 2016. dvdrtools 0.2.0 has been released. (This was the last release of dvdrtools before the project was abandoned.)
  60. "cdrtfe - open source CD/DVD/BD burning program for Microsoft Windows". cdrtfe.sourceforge.net. Retrieved 28 November 2015. cdrtfe is a win32 frontend for the cdrtools (cdrecord, mkisofs, readcd, cdda2wav), Mode2CDMaker, VCDImager and other well-known tools.