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I am not sure about ,how you are trying to restore. Hope the below link will help you and guide you how to perform.<br />
<a href="http://support.microsoft.com/kb/811621" rel="ugc nofollow">http://support.microsoft.com/kb/811621</a><br />
<a href="http://support.microsoft.com/kb/244805" rel="ugc nofollow">http://support.microsoft.com/kb/244805</a><br />
<br />
Most probably you must be trying it from administrator or backup admin , please update ntbackup.exe &nbsp;<br />
<br />
<a href="http://support.microsoft.com/kb/925694" rel="ugc nofollow">http://support.microsoft.com/kb/925694</a>
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I am not sure about ,how you are trying to restore. Hope the below link will help you and guide you how to perform.
http://support.microsoft.com/kb/811621 [http://support.microsoft.com/kb/811621]
http://support.microsoft.com/kb/244805 [http://support.microsoft.com/kb/244805]

Most probably you must be trying it from administrator or backup admin , please update ntbackup.exe  

http://support.microsoft.com/kb/925694 [http://support.microsoft.com/kb/925694]

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The .bak files are not from tape they were from a backup to disk folder in backup exec. For each day there is 4 .bak files (i think I set the max in BE to be 4GB).<br />
<br />
Any other suggestions? Do I need to catalogue the entire folder in backup exec or something?
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The .bak files are not from tape they were from a backup to disk folder in backup exec. For each day there is 4 .bak files (i think I set the max in BE to be 4GB).

Any other suggestions? Do I need to catalogue the entire folder in backup exec or something?

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Thanks. Installed BE and restored the data
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Thanks. Installed BE and restored the data

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<div class="content wysiwyg-content">
My backup server running backup exec 12 has blown up.<br />
<br />
I had a backup to disk aimed at a different server. The .bak files appear to be OK but when ever I try to restore them using NTBACKUP the following appears &nbsp;- <br />
<br />
'This set cannot be cataloged because the media containing the set data is missing. '<br />
<br />
Do I need to restore them with backup exec, is this why they are failing? Plus I'm attempting to restore the .bak files from their original location.
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My backup server running backup exec 12 has blown up.

I had a backup to disk aimed at a different server. The .bak files appear to be OK but when ever I try to restore them using NTBACKUP the following appears  - 

'This set cannot be cataloged because the media containing the set data is missing. '

Do I need to restore them with backup exec, is this why they are failing? Plus I'm attempting to restore the .bak files from their original location.

'This set cannot be cataloged because the media containing the set data is missing. '

The term "Backup" means the methods and processes involved to copy computer data (system data as well as application data) to media other than the ones where the data originally live (disk, tape, optical, cloud). "Restore" in turn means the methods and processes involved in data recovery, i. e., bringing back copied computer data to their original location. Backup/Restore primarily serves as a means of protection against data loss, be it due to disaster, corruption or sabotage. It can also be used for recovering data from an earlier point in time and even for cloning machines or applications. There is a wide variety of backup/restore software available, from expensive commercial products to free or open source tools.

Storage Software

The Microsoft Server topic includes all of the legacy versions of the operating system, including the Windows NT 3.1, NT 3.5, NT 4.0 and Windows 2000 and Windows Home Server versions.