We have release imageUSB V1.1 Build 1010 which should fix the crashing issue seen with fake USB drives and reading past the end of such a drive. When creating an image, if there is a possibility of reading past the end of the drive, we will only only write the image up to reported size of the drive.

In the meantime, we are trying to acquire an actual fake USB drive (ones that report incorrect size compared to actual available space) to do some more testing.