I don't know much about Mac's but you just need a Utility Program that can say re-format your videos to a format the Macintosh's can read. Now to something I can help you with. Getting Data off a Stuffed PC Hard Drive. 1/ Its probable that the system files are damaged on the PC, so the easy way to fix that is to put the Hard Drive into another computer, then copy the files you want to DVD or CD. 2/ If there are mechanical damage to the Hard drive you are in trouble, however. Get a copy of "Spinrite" a utility program that repairs Hard Drives. Get hold of "The ULTIMATE Boot disk and "Nortans Disk Doctor".