Be sure to use protection…

Scrub Me, Scratch Me, Scribble on Me: An Impervious Disc
Protected by a special coating on the recording surface, the TDK Armor Plated DVD discs are said to resist damage from dirt, fingerprints, scratches and liquid spills while preserving the data. TDK testers reportedly wielded such unfriendly materials as steel wool pads and permanent markers in failed attempts to damage the discs. The coating has antistatic properties, so it also wards off dust. [New York Times: Technology]