Never waste valuable time searching for discs again. The Imation Disc Stakka is an automated carousel that stores, protects and retrieves all of your 12 cm optical discs, making lost or damaged discs a thing of the past. Each Disc Stakka unit holds 100 discs and you can stack units up to 5 high to create a tower that holds up to 500 discs. This tower links to your computer via a single USB connection, and the bundled OpdiTracker software lets you find and eject any discs in seconds. It's the simple and efficient way to manage your CD and DVD library.