MediaMonkey is a music manager and music player for serious music collectors.

Zune was a media management software for Microsoft Windows.

doubleTwist application enables users to send photos and videos to their friends and sync their media library to a wide variety of portable devices.

Madsonic is a web-based media library and media streamer with jukebox functionality.

Swinsian is an advanced music player and manager for Mac OS X supporting FLAC, MP3, Vorbis, WMA and more.

Exaile is a cross-platform free and open-source audio player, tag editor and library organizer.

aTunes is a free and open source audio player with MPlayer as its playback engine. aTunes supports MP3, Ogg Vorbis, FLAC and other formats. aTunes allows user…

Helium Music Manager is a music tagger, renamer, cataloguer, browser, playlist manager and report creator.

freedb is a database of compact disc track listings, where all the content is under the GNU General Public License.