Cdrtools  cdrtools (formerly known as cdrecord) is a collection of independent projects of free software/open source computer programs, created by Jörg Schilling and others. It is also released as a part of Schily Tools. 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:  The first releases of cdrtools were called cdrecord because they only included the codice_1 tool and a few companion tools, but not codice_2 nor codice_3. In 1997, a copy of codice_2 (developed at that time by Eric Youngdale) was included in the cdrecord package. In 1998, a copy of an experimental version of codice_3 (developed at that time by Heiko Eißfeldt) was included in the cdrecord package. In 2000, Jörg Schilling changed the name of his package from "cdrecord" to "cdrtools" to better reflect the fact that it had become a collection of tools. DVD writing support (cdrecord-ProDVD) in cdrecord started 1998, 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 discussions on the mailing lists, 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, whereas Redhat had dvdrecord.