I too have a flash drive that is unformatted. Because I followed a previous
post that suggested formatting the drive might eliminate another error
condition. Well it didn't, and it won't format, and now the dongle is, well,
defunct. Using FAT didn't work either. The initial error occurred after
copying 250 to 350 MB of data. Then windows XP comes back saying that the
device is write protected. Kingston Data Traveler KUSBDTI/512KR does not
have write protection. Their website states so, and has no further
information on write protect errors.
When I try to format, Win XP says that it doesn't work because the drive is
write protected. I've tried all three formats, with and without quick
format, and will return the device tonight.