A 'black' space or a 'blank' space? Sounds as though it is displaying the frame of that particular movie (same thing you see in Finder if you had a digital copy) only this one is a black/blank frame.
Then leave, lol. Goodbye. You're not the only person on these forums who knows the issue. If the fact that I bumped my topic looking for help makes you keep your info to yourself, then you need to grow the hell up. The more you keep posting here, the less i'll have to bump the topic, so thanks for that at least.