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Okay, I know this question has been asked to death, but I applied the ddfix patch. Everything was going fine, but then in a matter of seconds (in gameplay) the game crashed. Can someone tell me how to get Thief Gold running well, videos playing, without common freezing? Installing the extra textures and daemonites model pack would be nice, but I don't really mind that much if it causes more problems.

If you wanted to know, I purchased the thief complete collection off amazon.

Thanks for answers!
I'm having this same problem, trying to play Thief 1 from here on; the game will run fine for about 15min then it just freezes my whole computer. I'm playing on Win 7 64-bit
I suggest you try the sticky on top of this page.
Have you tried running as administrator? I have it set to play that way every time. The videos work and I've only had it crash once.