I have Windows 7 Ultimate 32 bit and two Pioneer burners:
The second burner has actually been sent for RMA as I thought it was defective, but at the end of the day it turns out that ALSO the DVR-216D isn't able to burn CDs/DVDs.
I am using official firmwares and no burning software (IMGburn, Nero, etc.) is able to create working media supports!
Is this a Pioneer problem with Windows 7 or what??:a