Well had a repeat problem from Windows Media Player 11 today so I thought you may as well learn from my mistake!
If you delete a WMP monitored folder using Windows Explorer whilst WMP is running you are more then likely going to corrupt the WMP database.
To recover from a corrupt Windows Media Player Database
- Stop the Windows Media Player Network Sharing Service –
Start, Run net stop wmpnetworksvc
- Rename the folder named Media Player (change the username for your login profile) found in:-
C:Documents and SettingsAdministratorLocal SettingsApplication DataMicrosoftMedia Player
- Start Windows Media Player and:-Start, Run net start wmpnetworksvc
This should now allow you to add WMP monitor folders and rebuild your database.