[QUOTE=eyeman;2189361]I get an “Error initializing test” when using the NEC drive to scan :-([/quote]Oh… strange thing. Most NEC drives are OK to scan CDs…
Thus, from what I gather reading vroom’s and dragemester’s posts, you’re currently stuck with no possiblity to scan CDs with your drives!
I’m pretty sure you can work things out with the 4571A and get it to scan CDs, but I have no good idea right now (maybe increading the spin up time…? ). Maybe you’ll have more luck asking in the NEC/Optiarc forum.
Meanwhile, you should disregard entirely the scans you’ve performed with your Plextor drive. Doesn’t mean that the discs are good, though.
EDIT maybe you can already post transfer rate tests performed in both drives?