Unknown artist and albums, duplicate songs and missing artwork -- if these words describe your iTunes music library, have a try on Tunes Cleaner.

Video Demo:
Code:
youtube.com/watch?v=LXkaYXhlD2E
Tunes Cleaner for PC

> Clean up iTunes and external music folders smartly

> Get album artwork for iTunes music library and other music files
> One-click operation to delete duplicates in iTunes and other music libraries
> Clean up iTunes music library and apply to iTunes in one click