Well, all the music has been improved for the cd format. It's no longer midi. The music I used, I cut down to a 20 sec loop, instead of the full 2min+ song. It also has a lot of new movie sequences on PSX. Other than that, it's essentially the exact same game. If you're interested though, I've seen that media available for download on various sites. Such as http://www.xcomufo.com/, in avi and mp3 format. EDIT: or wait, it's available on this site too. Nevermind.