[Microsoft SQL-DMO (ODBC SQLState: 42000)]
Error 3143: [Microsoft][ODBC SQL Server Driver][SQL Server]
The data set on device '\\.\Tape0' is not a SQL Server backup set.
[Microsoft][ODBC SQL Server Driver][SQL Server]Backup or restore
operation terminating.

User's solution

This works!

Microsoft KB article:
http://support.microsoft.com/kb/253230

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