Hi All, I have a spare external portable HD that I was using for back ups but am now using another HD instead. I would like to use this spare HD just to store Movies as they are taking up space on my UMBP. Currently, this spare HD is formatted to work with Time Machine. Can anyone please tell me, if I erase it via disk utility, what should I format it to so that the HD can be accessed by both Mac & PC owners? There is the usual Mac OS Extended options, MS-DOS (FAT) & ExFAT. Also, in Disk Utility, there seems to be two options on which to erase - one which says "250GB WD 25000BEA External Media" & another below (but slightly off to one side) which says "Macbook Pro Time Machine Back Up" (I named that) - which one do I select to erase? Many Thanks, Bazzy!