Hi, I was hoping someone could help me with this issue. The superdrive in my 1 ghz iMac g4 does not recognize DVDs. It doesn't even spin them. It just sits there and then ejects them. It recognizes CDs just fine and will spin and play them. Does anyone have an idea of what I can/should do? Not sure if this helps, but the model number of the drive is: sony dw-u10a. Do you think this could be a firmware or region issue? I was able to reinstall using my panther dvd. But when it boots up and I insert a movie or any DVD program installer, nothing happens. I appreciate all your help!