Some Ruby scripts to batch process MP3 tags. Run them at the root of the folder you wish to process.
e.g.
~/Music $ ruby ~/mp3tools/addart.rb
- addart.rb - Attaches folder.jpg (if it exists) to MP3s that are missing album art
- artclean.rb - Removes Windows Media AlbumArt JPGs
mp3tools uses id3lib-ruby which requires some packages
For Ubuntu:
sudo aptitude install libid3-dev ruby-dev g++
For other OSs see the id3lib install page:
http://id3lib-ruby.rubyforge.org/doc/files/INSTALL.html
Then install id3lib (for Windows this is the only step)
sudo gem install id3lib-ruby