FF7 PC Pre-Scripted Event Crashes

Granted, I know it's outdated, but one of my friends would like to beat it again, getting KotR this time. He doesn't have the installation CDs and I suspect that my friend's put a no CD patch on his version. Anyway, the game keeps crashing before some sort of special cinematic (i.e. Huge Materia @ Corel) and cutscenes (Gold Saucer tram).

Any ideas?