On Friday, February 7, 2003, at 01:46 AM, Thubten Kunga wrote: > Thanks Steve. I think I now have a clue into the world of demuxing. > What sort of source material should I try and find where that needs > this technique on it's way into iMovie 3 so I can practice learning to > do this? You know where there are any docs for Extractor? Is it better > to demux the audio into AIFF or is the MP3 choice just as good? Are we > demuxing one sort of video type into the DV format? Is that the idea? > Or are we demuxing into another video format? When and why? There's lots of material at: http://www.archive.org/movies/prelinger.php Why you'd need to take apart an MPEG file depends on what you'd want to do with it. Primarily, if you want to edit it, or move it to another format, say DVD to VCD. SR