Yep, its gotta be the controller. It has to emulate all that much more data, stuff or whatever. I just ran a lap on GT2, getting right around 20fps, so it was jerky as hell. Then the replay ran just fine at a contstant 30, beautifully. If anyone's using a Dual Shock and running the emu at full speed, will u please post your specs, configs, and that stuff?