What luck, having just purchased Tiger and sorted myself out to make the upgrade, the optical drive has decided to give up the ghost. The drive has being playing up for a long time now - being very picky about which disks (DVD) it reads and mounts. At the moment, from a Finder window I can see that the Tiger upgrade DVD has been recognised but when I try to open it, Finder crashes. From this, I have deduced that the drive is well and truely buggered - correct? Previous to this I had repaired permissions rebooted and zapped P-RAM. Now all disks (CD & DVD) are not mountable. My options 'matrix' is now a new drive - internal/external and combo/super - I take it that Apple won't replace the drive as it is now 4 years old? Any advice greatly appreciated.