Hi all and I hope someone can help. I have a Sony DVD RW DRU-500a 2X burner.I am running it on a PIII 733 MHZ system with 256 MB's RAM, 30 GB hard drive and 128MB Video card.It was given to me by a friend who was running it on basically the same systems under Windows XP. He was using the newest version on Shrink DVD and COPY TO DVD. On his system it worked great but when I burn a backup I get a DVD that will play on my computer but not on any DVD player. The error read "no disk" or "please insert disk".I have tried a half a dozen DVD players up to and including 2 all region all formats DVD players that can play a slice of cheese if you put it in but not my backups. I am using Memorex 4X DVD+R media and it does everything right and tells me the burn was a success but nothing happens when you play it. The really screwy thing is that when I burn to a re-writable,either DVD-R or DVD+R the copy will play but nothing else works when burned.I have been to the Sony site and downloaded the newest firmware updates for my burner but still nothing works. I have tried Nero but it doesn't seem to be as sucessful as COPY TO DVD. Any suggestions please and thanks all.