I have:
The Prestige
The Punisher
Underworld Evolution
300
Hitch
Casino Royale
Xmen 3
I think that is it.
I wish that this format war would end simply because the majority of my DVD's are Universal :(
Addendum: Also 2 separate players would be bad enough, but my OCD would go CRAZY seeing both blue and red cases in my DVD case 8)