I managed to solve the problem by buying a physical copy of the game and ripping an ISO of it myself. This is incredibly unhelpful to you MandalOne since you say you're running into the problem from your CD. But yeah, seems like there's something not quite right with the various downloads found online.

I'm having the same issue with the cutscenes. Haven't found a way to solve it yet. If you find something out I'd love to hear it. You seem proficient with computers so the likelihood of you figuring it out is far higher than me doing it.