I have a Plextor PX-760A (fw 1.06) in an external enclosure (based on Prolific PL-3507) and I'm trying to perform CD-R quality scanning with PlexTools, but I haven't been able to get it to work. I get an error immediately when the test starts when connected by USB (pic below) and just a hang when connected by FireWire.
With the same setup I can perform DVD quality scans and I can perform FE/TE tests on blank CD-R media.
For anyone with a PX-760A connected externally can you confirm or deny whether C1/C2 scanning is working for you?
Using PlexTools 2.35 in case it matters, and original command protected 1.06 firmware (not "free your Plextor firmware").