Ok, I have an 8GB Toshiba TransMemory U2M USB Flash Drive and I want it to work with both Windows and Mac. I know this can be accomplished by formatting FAT32, but I need to be able to load 5GB files. This of course eliminates FAT as an option. I know there is a format that works for this, because I used to do these transfers with this very drive (with the manufacturer's format). Up until I had to temporarily reformat the drive for a little project. Now I need to get this USB drive back to a format that works for me. Any ideas? How are they formatted by the manufacturer?