Sorry for the late reply. I’m kinda swamped with recording work (good thing). I’m still using the Utrack as my main recorder. I haven’t had time to reformat the drive in question, I simply connected a new drive and all seems to be well.
The new HD also resolved another issue. When pressing record, it lights red instantly. With the other HD, which was about 50% full, it would be a full 10 seconds before the uTrack record button illuminated red. Out in the field, that’s a LONG 10 seconds.