Yes, I know what you wrote, but there is no apparent reason why the game should not load the ISO/MP3 files. If you're not interested in getting your ISO/MP3 files working, then fine. If you are, then tell me what exactly you are doing and what exactly happens when you do it. Furthermore, are you running across a network? If you are playing them across a Relax share, then you'll have to wait about 30 seconds because of the way Gens searches for file names.