I'm not quite sure what you mean by simulation mode...All i did was pop the disc into the driver, went thru Nero to do a "Test Drive" and hit F2 for the "Transfer Rate" Testing. And the above screenshot was all i got. Ir looked kinda jittery when the driver attempted to go to 12x
I'm not sure if i have DMA turned on though. I have the driver in an external enclosure connected via USB. Below is screen shot of what the "Get System Info" tool option from Nero gave me.