Try using auto detect to determine which mode works best w/your drives. You might also try using the speed limiting option. I recommend setting it to 2x speed. That is the speed of an actual PSX CD unit. You could also try asynchronus mode. This is what I have done and Petes CD plugin works great for me. Best of luck.
Hmm 2 most over used words in the computer dictionary, NEED HELP
Anyway I found a newer version of petes CD plugin but Limit speed does not work on my HP CD-Writer (which I find quite odd) does work on the toshiba 48x but no improvement. (it really is a crappy drive skips PC movies all the time)
Auto Detect Still Crashes, Async didn't seem to help much.