Matroska.org
Speex.org
Opus-codec.org
Xvid.org
Webmproject.org
Afreecodec.com
Codecguide.com
Free-codecs.com
Moviecodec.com
Codecs.com
Corecodec.com
Radgametools.com
Libav.org
Rarewares.org
Monkeysaudio.com
Mainconcept.com
Divx-digest.com
3ivx.com
Kurohane.net
Divx.com
Shark007.net
Cccp-project.net
Elecard.com
Kcsoftwares.com
Xpcodecpack.com
Windows7codecs.com
Mediacodec.org
Koepi.info
Mediaplayercodecpack.com
Divxmovies.com
Audirvana.com
Musopen.org
Sbooth.org
Vorbis.com
Audacityteam.org
Ubuntustudio.org
Ardour.org
Opsound.org
Tomahawk-player.org
Hydrogen-music.org
Jackaudio.org
Javazoom.net
Atunes.org
Theora.org
Audiocoding.com
Playflv.com
On2.com
Dyne.org
Voxforge.org
Milkytracker.org