Bought this exclusively for Castles II. Most of the game is intact - a challenging, unique strategy game that is still addicting and rewarding today...
however there are some issues with this particular version. Video playback often includes a harsh screech sound (in OpenGL, DirectX, etc. - it doesn't matter). Also, there is a serious problem with loading saved games. You won't be able to stop part-way through. And for those of you who original played the hard disk version, you'll be sad to know that MANY plots have been removed to accommodate voice acting.
All-in-all, it's still a great strategy game and one that's hard to find. I'd recommend it to anyone - but beware it's not 100% of what it could be.