Title 4 - Unknown Artist
musicbrainz.org serves a huge database (over 6 million songs so far) of “accoustical IDs“ of songs. Together with a software such as the Jaikoz Tag Editor (ugly Java app, but helpful) you can create the same IDs locally from your unknkown files and let the software look them up in the musicbrainz online database.
Unfortunately I couldn’t get it to work to correct the tags automatically, but the “Show PUID in musicbrainz” option showed at least the right song information in the web browser and saved me hours of browsing online music stores to identify the songs.
