Readerware Book Database - The easiest, fastest way to catalog your books, nothing else comes close.
Helium Music Manager - You can take control of your music collection.
Tellico - Tellico is a KDE application for organizing your collections.
Music Collection - This Music Collection Software allows you to organize your music collection including CDs, MP3s or vinyl records into a fully searchable database.
Book Catalogue - This is a simple book catalogue application, to store a list of your books.
Waf Music Manager - Waf Music Manager is a lightweight and fast application that helps to organize the local music collection, such as large music files, edit, video formats support, high resolution, and many more.