i have a plextor 161040a it work at all speed.so y spend big money on a plextor 121032s.i had a plex 121032a that work find to but for $5 more i got the 161040a.i backup my no 1 lives forever delta force land warrior and other games that sd2 they work find.i use clonecd 2.8.4.3. they all are accurate.