Okay, first off. Long story short I want my harddrive to be readable by my Xbox 360. I'm well aware of it needing to be in FAT32, and how to put it in that through disk utility and formatting it to MS-DOS. I infact had it running on my 360 as a test after I put about half my videos on it, then plugged the harddrive back into my MBP to finish putting everything on it. Apparently my MBP turned it back into the regular Mac formatting? OS X Extended Journal or whatever it is. Now I can move files that are bigger than 4gb, and it won't show up on my Xbox any more. This makes no sense, I didn't do anything formatting wise after I got it working, does anyone know what the issue is/how I can put it back into FAT32 with out taking my media off and putting it on again? I'm running the latest version of Snow Leopard if that helps.