i get this msg from sql server when i restore the back up file
TITLE: Microsoft SQL Server Management Studio
An exception occurred while executing a Transact-SQL statement or batch. (Microsoft.SqlServer.ConnectionInfo)
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ADDITIONAL INFORMATION:
The media family on device 'C:\Program Files\Microsoft SQL Server\MSSQL.1\MSSQL\Backup\TenderingSys' is incorrectly formed. SQL Server cannot process this media family.
RESTORE HEADERONLY is terminating abnormally. (Microsoft SQL Server, Error: 3241)
For help, click: http://go.microsoft.com/fwlink?ProdName=Microsoft+SQL+Server&ProdVer=09.00.5000&EvtSrc=MSSQLServer&EvtID=3241&LinkId=20476
how i can solve it ?