MusicBrainz Picard is a very useful program for anyone with an MP3 collection that isn't quite fully organized or accurately defined. Essentially, this program can be used to tag audio files with information pulled from a massive database of albums. Most major file extensions are supported including MP3, WMA, and many more. You also can download custom plugins to fully expand all of MusicBrainz Picard's features. The best part about this program is that you can use it free of cost, there's no monthly fee or initial free. It is compatible with Windows OS, Mac OS, and Linux.

Key Features of MusicBrainz Picard:

• Retrieve missing information about audio tracks in your music collection
• Easy to use interface that is very customizable with custom plugins
• Supports all major file extensions (MP3, WMA, AAC, etc)
• Compatible with Windows, Mac, and Linux Operating Systems
• Completely free to download and use

Fill in the missing details of your digital music collection today for free with MusicBrainz Picard!