I recently purchased 3 50 packs of TDK DVD+R's from compusa for $20 each, and I ran them in the identifier and they are Ricohjpn. The problem is that I have tried to back up a DVD with them five of them failed in a row. It reads that there is a writesector error. So far none have worked and I thought they were supposed to be good. I have gone through a 100 pack of ESA brand DVD+R's that are by cmc magnetics and I at least had a 50% success rate. So far I have backed up approximately 50 of my DVD's and for some reason each time I stick a movie DVD into the burner to read it, the burner takes longer and longer to recognize that a DVD is in the burner. SO now it takes about 1 minute for the DVD to be recognized, whereas before it only took a few seconds. So i have no idea if this is related to why I have having horrible success with the TDKs. Any suggestions or advice would be of great help. Also, I have a lite-on DVD burner, not sure if it's good or not. Thanks.