It never occured to me that "DiZ" was a sort of play on DISney. I didn't even think of it until now. I know that Yen Sid is DIS NEY backwards, but I never even thought of the name "DiZ". I always thought it meant "God" in some language because he certainly seemed like a "god" in Twilight Town, and he had the bearing of a god. I always thought he'd be "everywhere at once" in the game too, even as a villan for Sora to fight.
Yea, it's short for Darkness in Zero, but still. It's an odd thought. Heh.