Hi Lilwolff, This had me a bit stumped as I am lucky to have programs like 'Media Cleaner pro' which does everything and anything to compress multimedia files into the tiniest space. Unfortunatly it cost about $400. Anyway I did a search on the web and came up with this. http://www.mpeg.org/MPEG/ It's a site that deals with explaining MPEG compression. The audio side of MPEG is mp3. Check it out. MP3 compressors are usually free. Hope this helps. Colm...