So it's definitely the pc and not the way mame emulates the rom? That's good to hear. I was googling that question and all the responses I was reading were saying it's not the pc, it's just that some games don't play well. I noticed those posts were all a couple of years old, so I was hoping it would run on a faster machine. Thanks for answering so quickly. What other games will only run on a faster machine? It would pain me to use my faster machine for my mame cabinet, just to run Blitz. If a lot of games need the faster machine, I'll bite the bullet. I'm still relatively new to mame, and I'm going through my rom set remeniscing with the oldies still.