Remember those Teon's 8xDVD-R's on sale at Staples? I I bought a bunch and burned over 100 dvd's with no problems. However, I have had problems making copies of the backup with these dvd's. I use NERO and so far 7 dvd's have recieved failure to burn during the process. It varied anywhere from 10% thru 93% done. I burned some at 4x,6x and 8x and have received the burn failure. I have been able to burn some with no problems also. Anyone else have any problems with making copies of backups with these? Again no problems on the inititial backup. I was wondering if it could be the media or if I ran my Burner to long. I had burned for 12 hrs straight. Do you need to let the PC cool down after a while?