Who does not know? In Steel Books standing side by side on the shelf, scrubs fast times from the paint or put up with ugly scratches. The is now with the practical cases of "Protected" Remedy managed. Supplied be about 100 to easily 20-30 times, resealable PVC cases. The release strip at the adhesive edge is still anti-static and very customer friendly! Unfortunately They fit only in Blu Ray Steel Books and ählichen Blu Ray's, but is available on request different sizes!