Hello all, I tried a search, but couldn't find my exact problem... I have a 20" iMac G5 2.1ghz (iSight). My friend has a 20" 2.0ghz rev b. Neither one of our computers will burn dvds anymore. We can read and write cd's, and read dvd's but whenever we put a blank DVD in the drive it just spins for a while and will spit it out. I don't know what the problem could be. We have tried different brands of dvd, but still no luck. Before the computers would take any blank dvd we would throw at it.. any ideas????