Tune Up – The #1 Plug-In for iTunes
TuneUp is a great application for Mac and Windows that helps to clean and maintain neat iTunes libraries by searching for missing or inaccurate ID3 tags in mp3 files.
• Fixes mislabeled song info (track 01 & unknown artist)
• Removes duplicate songs
• Fills in missing album cover art
• Gets concert alerts, music videos, artist bios & more