ACE Mega CodecS Pack 6.03 - Professional (49.2MB)
[url]ftp://ftp.vein.hu/pub/windows/utils/media/codecs/ACEMCP603PRO.exe[/url]
Released on 21 Dec 2004

K-Lite Mega Codec Pack 1.18 (20.4MB) *Updated*
Download link 1:
http://members.home.nl/codecpack/klmcodec118.exe
Download link 2:
http://digidownload.libero.it/kazaaita/mirror/klmcodec118.exe
Released on 4 Feb 2005

K-Lite Codec Pack 2.35 FULL (9MB)
http://members.home.nl/klitecodec/klcodec235f.exe
Released on 23 Dec 2004


Enjoy them guys! ;)
3 months later
Those packs are one of the best things that humanity has ever created !