Symptoms
When a database is backed up to multiple disk files, and one of the files in the backup set is deleted and then used again in the same backup set to back up a database, a restore of the database using this backup set may fail with the following message:

Server: Msg 4038, Level 16, State 1, Line 1
Cannot find file ID 1 on device ‘d:\north2.bak’.
Server: Msg 3013, Level 16, State 1, Line 1
Backup or restore operation terminating abnormally.
Resolution
Microsoft has confirmed this to be a problem in SQL Server7.0. This problem has been corrected in U.S. Service Pack 3 for Microsoft SQL Server 7.0. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
274799?(http://support.microsoft.com/kb/274799/) INF: How to Obtain Service Pack 3 for Microsoft SQL Server 7.0 and Microsoft Data Engine (MSDE) 1.0For more information, contact your primary support provider.