How can you transfer a ClockworldMod backup from the external SD Card (formatted-only the backup is in the card) to the PC? When I access the SD Card in Windows Explorer, the size of folder of the backup is about 20 MB but something mysteriously takes up about 3 gigs in the card. Is that part of the backup? How can I make sure that I move the clockworldmod backup folder to the PC, completely?