I believe Mitsubishi 74 min CD-R's are the best. Put it this way I have 200 games:
70-Mitsubishi - never crash
30-Verbatim - sometimes crash
25-Kodak gold - sometimes crash not as often as verbatim
50-GoTech - Good hardly ever crash and very cheap
15-TDK - they crash all the time
10-Basf - Good but still crash
I have an external mod chip.
Also don't bother with cdr-win I have about 20 games that I had to recopy because cdr-win corrupted them making the games unreliable. Movies jump, sound corrupts, Games crash often.
Clonecd is what I use now and all my games work fine. Except for the odd crash.
Hope this helped you.
Cheers