remove photoresist material from a photoresist coated glass plate the photoresist material is burnt by the laser the photoresist is cured and unexposed photoresist rinsed off and the resulting data bearing glass master is then electroformed with a metal such as ag or ni step 26 to form a father in the case of a disc known as the u201c father disc u201d the father disc may be used as a template to make a mirror image disc known in the art as the mother disc step 28 mother disc is used to make optical duplicates of the father disc step 30 such discs being referred to as children discs children discs are referred to as stampers when used to produce multiple discs in an injection molder if an entire disc u201c family u201d is not created the father disc may be used directly as the stamper the injection molding step 32 uses a stamper to form deformations in the manufactured discs representative of the premastered data of premastering step 22 the manufactured optical media are then removed from the mold and allowed a cool down period known in the art as the buffering step 34 the surface of the polycarbonate substrate carrying the deformations is coated with metal in metal sputtering step 36 in metal sputtering step 36 metal is coated over and within the deformations to form a metal layer over the polycarbonate substrate both the metal layer and the.