I'm almost out of space on my Xbox internal hard drive. So, I bought a 64 Gig flash drive and plugged it into the Xbox usb port. I formatted the drive and clear its cache and was able to move several game files over to the flash drive. However, when I tried to transfer Gears of War, Gears of War Judgement and Sniper Elite V2, the game files only partially transferred to the flash drive and were recognized as corrupt files with the exclamation point symbol instead of their correct icon. What can I do to fix this situation?