VLC Media Player - VLC is a free and open source cross-platform multimedia player and framework.
Delicious Library - Delicious Library 3: Catalog your books, movies, music, software, toys, tools, electronics, & video games. Archive your life.
foobar2000 - An advanced freeware audio player for the Windows platform.
Ant Movie Catalog - Ant Movie Catalog is a free, open-source program made to manage your collection of movies on DVD...
Winamp - Winamp is a media player that allows users to play multiple-file formats, arrange media in a varied file-management system, and play unique media with AAC encoding.
Stuff Organizer - Stuff Organizer is a free open source library application.