I always thought Media Player Classic plays them 
I've got a region-free DVD drive and run DVD Region Killer, yet when i try to play DVD's in WMP; it tells me to lower my screen resolution, which does nothing. If i follow the help through it says essentially i need a DVD decoder. If i try to play a DVD in MPC it simply hangs?
How can i play DVD's?

I've got a region-free DVD drive and run DVD Region Killer, yet when i try to play DVD's in WMP; it tells me to lower my screen resolution, which does nothing. If i follow the help through it says essentially i need a DVD decoder. If i try to play a DVD in MPC it simply hangs?
How can i play DVD's?