Information
This tutorial will show you how to change the default background image in Windows Media Player that is shown in Library mode.
Warning
This tutorial involves hacking the registry, while this hack is safe, you must follow the instructions carefully.
Here's How:
1) Run regedit by going to start menu and entering regedit in the search bar,
2) Navigate to the following registry key:
HKEY_CURRENT_USER\Software\Microsoft\MediaPlayer\Preferences
3) Double click on the LibraryBackgroundImage key name and a dialog box will appear asking for a value. The value to be entered is from 0 to 6. Restart WMP each time you change the key value.
NOTE:
Below are screenshots of the various backgrounds.