Xiph.org
Opus-codec.org
Xvid.org
Afreecodec.com
Codecguide.com
Free-codecs.com
Moviecodec.com
Codecs.com
Corecodec.com
Radgametools.com
Speex.org
Libav.org
Webmproject.org
Rarewares.org
Monkeysaudio.com
Mainconcept.com
Divx-digest.com
3ivx.com
Kurohane.net
Divx.com
Cccp-project.net
Elecard.com
Kcsoftwares.com
Xpcodecpack.com
Mediacodec.org
Koepi.info
Audirvana.com
Sbooth.org
Vorbis.com
Tomahawk-player.org
Hydrogen-music.org
Atunes.org
Getmiro.com
Dvdflick.net
Dvdstyler.org
Videolan.org
Virtualdub.org
Mirovideoconverter.com
Avisynth.org
Avidemux.org
Kdenlive.org
Umplayer.com
Vvvv.org
Theora.org
Audiocoding.com
Playflv.com
On2.com
Dyne.org
Linuxaudio.org
Dscaler.org