[Cyber Akuma]

I tried this both with the Japanese and European version of the game

The game boots and runs, but if I choose to run the game with it's original soundtrack it keeps telling me to insert the original disk, it cant recognize it's own disk.

Yet the game itself runs and if I attempt to use custom soundtracks they work too.

Any ideas why this is happening?

Also, has anyone ever successfully PAL->NTSC Converted "Vib Ribbon" or "Megaman Battle And Chase"