I have been happily creating some DVD-R copies on Verbatim DataLIfe Plus and suddenly my software RecordNowDX will abort at the beginning of writing. These are brand new disks, no dirt, no fingerprints, no moisture. I bought a TDK DVD-R today and same problem. Strange thing is a TDK DVD+R wrote no problems. Using Sony DRU-510AK. Have reinstalled software (using WinXP) but no improvement. I do not think it is the media now so that leaves the software (which did a DVD+R okay) or the drive. Is the means of writing a DVD +R different to DVD-R ie two lasers etc? Has anyone had a problem with DVD-R turning off after a while? Drive still reads. VERY CONFUSED!!