I've been using a Sony DRU530a DVD RW drive for several months now on a Dell Pentium 1.7Ghz with 768MB memory with no problems. I've burned DVD movies, slide shows, DVDRW backups, CDRW and CDR music CD's, all with no issues or compatibility problems on my Dell Inspiron 600m. I've used Roxio, Nero and MyDVD successfully, but have settled on Nero most of the time. All of a sudden, out of the blue, the drive will not recognize any CDR, CDRW, DVDRW or DVDR disc, it only says "there is no disc in the recorder". It also will not recognize commercial DVD movie discs, but it will recognize commercial preburned CDROM discs.
The hardware appears to be normal, with no device conflicts or anything unusual in Device Manager. Everything else on the system appears to be fine, 2nd CDRW fully functional, two hard drives fine. I've not installed any new hardware or software, virus and adware scans are clean.
I can't imagine what could suddenly make it inoperative other than a simple drive hardware failure.
Any help would be appreciated.