This is an expandable 24 capacity CD / DVD Binder by Case Logic. It is durable, zipper binded with patented ProSleeves II that keep dirt away to prevent scratching of delicate CD surface. It features removable pages that allow for convenient organization. The CD storage sleeves with patented writable strip make organizing your CDs easy. 4 universal binder holes allow CD sleeves to fit Case Logic's unique disc binders and standard ring binders.