I formatted a 16 gig thumb drive to use on a DISH Hopper to store some recorded shows. When I transferred the data back to the Hopper DVR for perm. storage and attempt to reformat drive on my PC, it shows the drive is only 1 gig. Where did the other 15 gigs of storage go? How do I get back the full storage ammount? DISH has been no help in this matter.