Hello, My Pioneer DVR-105 was replaced by an Pioneer DVR-MCC (different model no#??) from warranty on my Medion desktop. The problem I'm having is that the new unit won't record (Nero) any disc except a DVD+RW. The message I get is: This disc is not writable, please insert a Disc. The unit supports DVD+R/RW,DVD-R/RW,DVD+R9 dual layer. Disc type in recorder: DVD-R. When I put in a DVD-R disc, it kicks it out. When I record a movie with X-Copy (DVD-R), it completes it's task. Can someone get me back on track. Thanks!!