I am able to create a CD/DVD recovery disk for Drive Cloner 6, but I would also like to create a USB recovery drive. But the Drive Cloner program fails to do this with my Sanddisk thumb drives, an 8GB Cruzer and a 32GB Ultra. The files do not really transfer, and I cannot boot from these drives. Does this mean that these drives do not support "USB HDD", as the Recovery Media Builder within Drive Cloner 6.0 says that they must? If not, what kind of USB drive do I need?