Hmm, well if you can mount it in your PC, probably the first thing you'd want to do is set the jumpers and if you can't find which setting is for what just google. Google is your answer to everything.(If theres no jumpers then uh... what?) However, Macs use a different file system than windows(Duh) so I'm not exactly sure what you're going to do with that.(Probably that macopener prog) You could always screw the data on the drive and have a formatting fornication party with the hard drive and make 20 FAT32 partitions.(Or do a linux partition or two, those are always sexy.) Yumm... Then again, I stray from macs. Not because I hate Macintoshes in general its just a bit risky with the parts. They intimidate me with their 'non cmos' ways.