I recently purchased this game cheap and used, the discs are in very good condition. I installed it seemingly without a hitch [twice!] on a clean OS install with updated drivers and the latest patch. It plays fine in regards to saving/loading and framerate - but there's a persistent glitch that causes several objects [empty flasks, candles, sandals, herbs - and even walls, fencing and NPCs] to appear as torches. Yes, torches. The torch-characters are still interactive, but the objects aren't - and they all have massive weights [flasks are 6491, lockpicks 4567...].
Despite the problems, what I've been able to play of the game has been highly enjoyable, and I'd very much like to get this situation fixed.