Plextor PX-820SA can burn DVDs but not CDs

I can’t quite figure this one out. I can burn DVDs quite fast with 0 problems, but all CD media gets spit out. I have tried 4 different brands of blank media with no luck. Tweaking burn mode, speed options hasn’t worked either.

ASUS DSBV-D motherboard, running Debian. Precious little on the Plextor site about this drive, and haven’t heard anything back from their support on this issue. Considering booting into another OS to try to narrow the problem a bit…

Any ideas?