hi Luis. thanks for the reply, im at work this morning and dont have access to check the usb on these computers, but when i get home tonight ill check. I think i formatted it properly as per the step by step guide, but i remember there were a few drop downs to pick while doing that and may have left one not selected properly? and of course i formatted it back to fat32 etc. so i could store movies on it again, so might not be able to tell what i had it set to, but i will see if i can remember.Is the USB formatted with the GUID partition scheme and HFS+ with journaling?