Diego 'Flameeyes' Pettenò 
  patches to FreeBSD and making Gentoo-friendly

Frantisek Dvorak <valtri at atlas.cz>:
  bug reports and miscellaneous fixes

Heiner <h.eichmann at gmx.de>
  FreeBSD CAM support and FreeBSD debugging & testing

Ian MacIntosh 
  Sun-related things.

Justin B. Ruggles <jruggle at earthlink.net>
  SCSI MMC discmode determination via Read TOC.

Justin F. Hallett <thesin at southofheaven.org>
  Fink packaging and matters OSX

Kris Verbeeck <airborne at advalvas.be>:
  CDDB library support from libcddb http://libcddb.sourceforge.net
  Gentoo ebuild-file

Manfred Tremmel <Manfred.Tremmel at iiv.de>:
  RPM spec file and inclusion of libcdio into
  http://packman.links2linux.de/

Michael Kukat <michael at unixiron.org>,
  for the hints in extractnrg.pl

Nicolas Boullis <nboullis at debian.org>
  Build issues, library symbol versioning, Debian packaging and issues

Burkhard Plaum <plaum@ipf.uni-stuttgart.de>
  some GNU/Linux and CD-Text patches

Steven M. Schultz <sms at 2BSD.COM>
  All things BSDI and the use of a really fabulous Darwin G5 box.

Svend S. Sorensen <ssorensen at fastmail.fm>
  cdrdao TOC-reading and CDRWin CUE parsing code based on cuetools
  http://cuetools.sourceforge.net/

xboxmediacenter team (www.xboxmediacenter.de)
 X-Box detection and XDF filesystem things

