Been happily using DRU510a along with an HP300c for a year. Started to get issues with bad media!. Tried various brands (Verbatim, Maxell, Memorex, Datawrite, etc. ), still the same problem.
Either drive will burn data or video to DVD+RW disks with no problems at all but now neither drive will recognise DVD-R disks of any brand.
I updated the latest firmware for the Sony, I've uninstalled all DVD writing programs and just have Nero 6 and 1Click Dvd.
System is XP Service Pack 2.
Any help would be much appreciated.