This probably isn't the correct forum to ask this question, but a lot of you are using GameEx for Mame. Does anybody have any experience with playing CHD's in mame? Almost every CHD I try to play is choppy and makes it impossible to play. I don't think that it is my machine, b/c I am running a 2.4GHz P4 w/ 1Gb of RAM, and a 64Mb video card. Any suggestions would be greatly appreciated.