i just inserted a cd into my drive (CD-RW/DVD) on my iBook G4, and the sounds it made were awful! It sounded like the drive was shreding my disk! i press eject immdiatlry and after around 10-15 seconds out popped my cd. i am really worried if my cd drive is bust 'cos this is a new machine and i dont want there to be problems with it already! does anyone know what could be wrong?