DiscGuard2 Clear DISC SEALER and Scratch protection formula for all disc formats. For DVDs including Blu-Ray, Game Discs, Book on Disc, DVD-Rs, DVD-ROMs, CDs, CD-Rs, and other similar disc media. Easily buffs on and buffs off disc applying an oxygen activated glass like shield of protection against abrasion, disc rot and disc abuse. Makes protecting your valuable data safe for years. Our DiscGuard2 formula has been Independently Tested by The National Institute of Standards & Technology. DiscGuard2 is used by public libraries everywhere.