Obviously none of us would ever intentionally let Qu-Drive completely fill up a USB drive but, just supposing you do, what happens? Does recording just stop and the drive stores all data up to that point or is data lost?
I think I have an answer to my question. It looks like there is no data loss when the USB storage device fills up. It just stops recording and the files end at that point. I was concerned because it looked like the Qu-drive system might just lose everything from the last time data was saved, but fortunately that turns out to not be the case.