Thank you. A faulty DVD, that really is a nightmare.
As for testing, your offer is much appreciated although I can't think of anything to test right now apart from doing the same (custom) battle a fairly big number of times in Windows 7 and 8 to make as sure as possible that 7 never crashes and 8 does. Having said that, I doubt anybody who is troubled by these crashes has even the slightest chance to play that battle you recorded successfully.
There might be some much more knowledgeable visitors to this thread who can suggest some useful tests for somebody who seems to have crash free install and a crashing one with the hardware being identical. It might take a while though for someone to do so.
Youtube. I think about every new member has had difficulty getting them embedded. The right way to do it is not obvious at all. Basically you only take a part of the link and put that between youtube tags. For your video it should look like this: