ings Migration Powertoy
by Microsoft (find all plug-ins by this vendor)
The Ratings Migration Power Toy for Windows Media Player 9 Series is an unsupported utility that allows you to copy user ratings from Media Library to MP3 and WMA files. You can later restore the ratings to update Media Library. For example, if you plan to move files to a new computer, you can use the utility to save the ratings to your files and then restore the ratings on the new computer.