iTunes Library Check cross checks your iTunes Library for unlisted files in iTunes.It scans the iTunes music library and checks if the found files are referenced in iTunes xml file. All unreferenced files are listed in the "Extra files" tab view and all references that lacks actual files are listed under the "Missing files" tab view.
Mac OS X 10.4 PPC,
Mac OS X 10.5 PPC,
Mac OS X 10.4 Intel,
Mac OS X 10.5 Intel
|| Mac OS X 10.4 or higher Default usage of iTunes which means "Copy files to iTunes Music folder when adding to library" enabled and keeping the library consolidated.