So far I have used these Ridisc DVD+R DL discs on an Optiarc PC internal DVD rewriter, a Sony RDRHXD860, and an LG497H. I have only got 8 coasters to show for it. They aren't cheap and they are definitely not worth the effort. I bought them from Yo-Yo tech off Tottenham Court Road. I asked them for advice and they suggested the problem was with my writer. All three of my writers are standard products. The Sony is a What HiFi 5 star rated device. I am avoiding Ridisc and Yo-Yo tech like the plague in future.

These RIDISC Dual Layer DVD+R discs were fine not spectacular but ok for general use. Didn't find many bad discs ever with these. I had a little bit of a problem with storage though, If you burn say a recorded program to one of these discs stored it in a disc case for maybe a year and then came to play it again ifound that about only 50% of them would actually work. This is using the same DVD player or computer drive.