Looks like someone did it: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5121777877&ssPageName=ADM E:B:SS:US:1 An Ebay auction which has 78 games on an audio CD. According to the listing, you just hook the audio up to the cassette port. Sounds reasonable to me. Does anyone know if it actually works? Thanks, John