Numento - With Numento, you will be able to efficiently and easily manage your collection.
Collectorz.com Book Collector - Create a personal book database on your own Windows PC. Automatic book details and cover images.
EMDB - Eric's Movie Database - EMDB is an application to keep track of your movie and TV Series collection.
Delicious Library - Delicious Library 3: Catalog your books, movies, music, software, toys, tools, electronics, & video games. Archive your life.
Book Collector - Collectorz.com Book Collector instantly catalogs your home library in a personal book database.
Tellico - Tellico is a KDE application for organizing your collections.