I WAS the proud owner of a new Powerbook G4 1.5 Ghz. Now the Superdrive will not accept discs of anykind. Spits them out after trying to read them once.
Did some research and many people are having this issue with the new models, as well as the model just before this one. Seems to be that after importing music or data from many CDs, repetitively one after another, in a short time period (I did about 15 music Cd's in 30 min maybe), the drive malfunctions and will spit out any inserted CD. Some ppls problem goes away on its own, only to come back at a later time, others like me, the problem is permanent.
Called Apple and in a round about way, the tech person said its a known issue with the current Superdrives. Anyway, I gotta send mine back now for a replacement AND I am gonna have to purchase Apple Care because the drive will probably be replaced with the same revision Superdrvie which is faulty and bound to fail.
So watch out for this issue. And use the Superdrive ALOT when you first get the machine so if it malfunctions, you still are under the 90day free phone support, etc...
good luck
MT