I had a problem sorta like that. I try to read these cheap office cd-rs and compusa cd-rws in my plextor 24x 10x 40x CD-RW and it had a hard time reading them and a lot of the time freeze my whole computer where not even CTRL ALT DEL would work. But guess what i could burn on the office depot cd-rs that are rated at 12x or 16x fine at 24x but it just when it came to reading my plextor 24x 10x 40x had a problem. But now it seems like my plextor 24x 10x 40x can read them find now and i have no idea why. Not sure if its because i upgraded to the 1.03 firmware or not but that may be it. I do know the firmware 1.03 for my plextor was not on the american website of plextor only europe i think. But i went to
www.cdrinfo.com and went to get the latest firmware from their for my plextor and they had the 1.03 their so i got it from there updated my firmware and so far it seems like that may have fixed my problem with reading those cheap cd-rs and cd-rws. But one last thing name brand cd-rs and cd-rws always were being read by the plextor just fine so i know my plextor cd-rw is not broken.
What a story huh?
Its still driving me crazy because i want to know why it did not like those cd-rs and cd-rws and now it does with this firmware which i think fixed my problem. But maybe it wasnt the firmware that fixed my problem. Who Knows. I mean i beleive the firmware said increased read performence but i will have to check again to make sure.
Are you using cheap cd-rs btw or no? Curious thats all.