The good new is that an operator made a simple mistake, and put a new tape
in the drive when the operation was a vstore on the store that had just
finished; our data does appear intact. But I saw this error before I knew
that, and looked the error up on LaserROM. Those wacky, wacky error messages
- is this actually just saying to make two backups?

1278         MESSAGE    RESTORE ENCOUNTERED ERROR READING MEDIA LABEL ON
                      LDEV !. (S/R 1278)

           CAUSE      Media error was encountered while reading the
                      label.

           ACTION     To ensure complete data retrieval use duplicate
                      store tapes.