"...Authorized Apple repair dealers have confirmed that a known problem with the eject mechanism on G4 PowerBook DVD drives is a misalignment issue, but not one local dealers can fix onsite. The problem will require the PowerBook be returned to an AppleCare Repair Center, but owners will go without a laptop until it's return.
The dealer said Apple is estimating the time it will take to ship out, repair the problem and return the laptop at five to seven days, contrary to other published reports. The repair is covered under the products one-year warranty. While the dealer agreed that the strategy in Apple repairing problems is an effort to ensure repair consistency, he also admitted the problem is not one he can fix. "The DVD drive is enclosed and will require it be taken apart for realignment," he said.
A recently-posted Tech Info Library document discusses procedures users can take in getting DVDs to eject from the drive, such as using the eject key (F12) and using the emergency eject button, but one Texas-based dealer has documented the problem on two G4 PowerBooks and that the eject key and button did not solve the problem in every instance..."