cdrtools (formerly known as cdrecord) is a collection of independent projects of free software/open source computer programs. The project was maintained for over two decades by Jörg Schilling, who died on October 10, 2021. Because of some licensing issues, 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: creation of audio, data, and mixed (audio and data) CDs burning CD-R, CD-RW, DVD-R, DVD-RW, DVD+R, DVD+RW, dual layer DVDs, and Blu-ray Discs support for Track-At-Once and Disc-At-Once recording modes cue sheet file format support, with Exact Audio Copy enhancements support for non-standard vendor specific drive features. Normal user can use cdrtools with Solaris fine grained privileges or similar Linux capabilities. 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. In 1998, a copy of an experimental version of cdda2wav, created by Heiko Eißfeldt was included in the cdrecord package. In 1999 the project started to be called cdrtools 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. 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. 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. Unregistered free licenses were initially limited to single-speed writing and would expire every year. 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. Blu-ray disc support was added starting 2007. The lack of open-source DVD writing support in 2001 led to heated