That makes sense. here's the command that gets run:
BACKUP DATABASE [mydatabaseserver] TO TAPE = N'\\.\Tape0' WITH INIT , NOUNLOAD , DIFFERENTIAL , NAME = N'Diff 1', SKIP , STATS = 10, DESCRIPTION = N'Diff 1', FORMAT , MEDIANAME = N'Diff 1', MEDIADESCRIPTION = N'Diff 1'
I think I...