cdrtools/cdrecord: The original cdrecord by Schilling. Was released under GPL, later combined with CDDL build tools to render it undistributable due to contributed GPL code. After Schilling obtained permission from contributors to distribute with CDDL build tools, then cdrecord is changed to use the library libscg (under CDDL) itself. This is undistributable in any case.
cdrecord-ProDVD: The cdrecord with DVD burning capabilities. Binary only with a 6 month license renewal. Some parts open sourced in 5/06?

dvdrtools: Fork of cdrtools by Bero to support DVD burners.

growisofs: Rewritten DVD-only burning software.

cdrkit: Fork of pre-CDDL cdrecord, using cmake build system.

wodim: The new derived cdrecord replacement in cdrkit.

Linux 2.6 SCSI/ATAPI support has been spotty and the various cdrecords floating around that distributions pinned to older versions due to the license change has not helped. cdrkit/wodim should support the Linux 2.6 ATAPI interface correctly (as well as latest versions of cdrtools). ossdvd is another project to support Linux 2.6 with a forked cdrecord.

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