Rawg - Video game discovery powered by you!
Ant Movie Catalog - Ant Movie Catalog is a free, open-source program made to manage your collection of movies on DVD...
ratehouse - The comprehensive media database for music, movies, tv shows, books, games, and podcasts.
Tellico - Tellico is a KDE application for organizing your collections.
Backloggery - Backloggery helps gamers keep track of unplayed and unfinished games in their collection.
calibre - Ebook manager, viewer & converter