SQL Server 2012 does not support restoring from a SQL Server 2000 backup

Error: Dbbackup failed:unable to restore database ' ppt '
Not valid backup
The database was backed up on a server running version 8.00.2039. That version was incompatible with the this server, which is running version 11.00.3000. Either restore the database on a server that supports the backup, or use a backup, which is compatible with this server.
VERIFY DATABASE is terminating abnormally.

Look for a hint that SQL Server (version 11.00.3000) does not support restoring from a backup of SQL Server version 8.00.2039.

This I have not verified, but from the point of view must not be directly to restore. To give you a workaround, restore the backup to a SQL Server 2008 DB instance, then back up, and then restore to SQL Server 2012.

Looking at Microsoft Books Online, SQL Server 2012 does support only 2005 and later versions of SQL Server backups for restore.

Http://technet.microsoft.com/zh-cn/library/ms186858.aspx

Compatibility support

In SQL Server 2012, you can restore a user database from a database backup that was created by using SQL Server 2005 or a later version.

SQL Server 2012 does not support restoring from a SQL Server 2000 backup