AutoTagX

AutoTagX(tm) automatically tags and organizes your MP3 files with the simplicity of drag-and-drop and the power of internet music databases. AutoTagX(tm) is what tagging on the Mac should be like. Features:

• Drag-and-drop tagging of individual files or entire albums in a folder
• FreeDB interface lets you grab track names and album information so you don't have to type it in
• Multi-disc feature lets you tag boxed sets all at once
• Smart links to allmusic.com let you instantly access information about the artist, album, or track
• Flexible naming of track files and album folders
• Includes contextual menu plugin so you can use AutoTagX without putting it on your dock

What is new in this release:

• Universal Binary.
• Handles AAC files, both .m4a and .m4p files.
• Supports an option to back up music files before retagging them. .m4p files are always backed up.
• Searches All Music Guide for cover art and album/track information.
• Searches Google Music for album/track information and cover art. Google Music does not provide the year or genre, though. Further, it looks like Google gets all its track information from AMG. And, its cover art looks like it's the same as AMG's only smaller. I'm leaving this in just in case searching AMG doesn't find something (because Google's search capability is a little bit more robust).
• Searches Gnudb for album information. Gnudb's track search doesn't work.
• Searches FreeDB for album information only. FreeDB's track search doesn't work well.
• Tries to extract title, album, artist, and year information from the file names.
• Gives you an option to use album, artist, title, year, and genre information from the current tags.
• AutoTagTools, just a contextual menu to launch AutoTagX on a file or folder, has been crashing for a long time now. I've disabled the "Install" option.
• Moved the legend to a drawer.