The other common alternative is to create a bootable (mirrored or cloned) copy of an existing bootable drive using backup software (such as Retrospect, DataBackup or SuperDuper!). In either case, you ...
I have two 128Meg USB flash drives, one of which claims to be bootable. So I fireup my XP install, and low and behold . . . . You can't make it bootable in Windows NT ...