Audio and Video Codecshttp://msmvps.com/blogs/vistadigitalmedia/archive/2008/08/09/audio-and-video-codecs.aspxDifferent codecs translate in different ways, so a video file compressed using the Intel Indeo codec will be different from a file compressed using the Windows Media Video codec, for example. For anyone interested in digital audio or video a basic understandingenCommunityServer 2008.5 SP2 (Build: 40407.4157)