Speaking of fighting games, Capcom Vs SNK 2. I have had that game nearly 2 damned years, but the thing never worked properly and would freeze after the first round, and trying to access the options menu would also freeze the game (it worked fine in PCSX2, so I investigated on a second PS2). Well I quickly put the CD cover back on to my other PS2, got the game to load, but the music still had issues (apparently the music tracks are fucked). Reset and before the music could get trashed, I went into the options menu, disabled it, saved to memory card, then started playing. Got all the way to Shin Akuma and gave up out of frustration of his cheapness. I then booted the game back into my modded PS2 with the memory card, and since I had the music disabled and saved that way, this PS2 now runs it very well as well.
All in all the games fine without the music, so long as it's playable finally after that length of time of frustration.
Edit: as for the Darkstalkers OVA, I'll have to find and check it out, I won't touch the US cartoon with a 20 foot pole (moreso than the average 10 foot pole).