Mine's a DVR-104, but my problem is slightly different: I can read and burn DVD-R, but it won't recognize the blank DVD-RWs. Having just opened a spindle of 25, I am chagrined to find out it won't even recognize them. Not sure the store would even take them back (assuming I can't figure out what's going on).
I haven't cleaned the drive yet (have to run back out to the store to take care of that), but why would it read -R and not -RW?
Could it be a driver issue? Pioneer only provides drivers for Windows... although I did find someone's personally made Mac firmware upgrade, but I didn't want to touch that unless I became desperate. Thanks for any help you can provide.