iTunes Library Updater

Ahh.. iTunes. One of the greatest tools that can take over your life. Yet, there are some issues when it comes to consolidating your mp3 collections and scanning other folders for music that wasn’t purchased directly from the iTunes store or ripped from a CD. This little add-on consolidates your libraries.
So be prepared to be controlled by another tool in your life. Support for Windows. No mention of what license it’s released under but it is free.
LifeHacker < iTunesLibraryUpdater