Re: Can someone explain.....
person who changed the tapes was outsourced
Or used the same 3 tapes[1] ad-infinitum, had tape error warnings turned off and never actually bothered to do a test restore.
Sadly a true case.
[1] Said tapes eventually more resembled bits of clear sellotape without the sticky bits. The only bits that still worked were the last bit of the tape that didn't actually get used.