What are some alternatives?
When comparing GCstar and Data Crow, you can also consider the following products
Delicious Library - Delicious Library 3: Catalog your books, movies, music, software, toys, tools, electronics, & video games. Archive your life.
Ant Movie Catalog - Ant Movie Catalog is a free, open-source program made to manage your collection of movies on DVD...
Tellico - Tellico is a KDE application for organizing your collections.
Numento - With Numento, you will be able to efficiently and easily manage your collection.
Griffith - Griffith is a media collection manager application.
Listal - Listal is a web-based DVD, music, game, book and many other things collection manager.