IF your laptop is under warrenty take it to a repair center and have them open up the computer and take out the CD drive, if your computer is not under warrenty and you want to do it yourself make sure you get a good set of screw drivers, and google up the Apple service manuel for your particular powerbook. There are a lot of screws, and some are well hidden, if you don't want the risk have a certified technicain look at it.