A workaround is Picard (http://musicbrainz.org/). For people who doesn't know Picard. It is a software that automatically identifies and labels your mp3s. It fixes album/track#, as well as cover art (request Cover Art Downloader plugin). Picard fixed around 80% percent of my songs, not perfect but better than nothing.
Again, when can we have CDDB/TAGs working in jar? :-)