The final buffing step restores the reflectivity of the disc to approximately its original condition. Think of it as wiping away the condensed steam on your bathroom mirror after a shower. Just as wiping away the steam allows the mirror to reflect your image, buffing away the resurfacing pattern allows the disc to properly reflect the laser from the disc player. The buffing process is best done dry because it relies on heat from friction to smooth the play-side surface (like glazing ice). Any water remaining on the surface cools the disc so that it doesn’t “glaze” as well. Be sure to properly store the buffing square to keep it clean and free from debris, which could cause scratches.