I am trying to back up two Windows Server to a tape Device (IBM 3581 autoloader) It uses Ultrium 2 tapes. I can see the backups running and the files being written to the tapes. However whenever I try to restore these files as a test I recieve the above message. I have tried files from both servers and various drives and still I recieve the same error message. What can I do to further diagnose this problem? TIA