Abstract: A label sheet having at least two labels for a compact disc. The compact disc has a read side and a reverse side with an outer diameter of the readable or writable area of the read side being less than the outer diameter of the disc and having a first inner diameter forming an aperture for the disc and a second inner diameter which is larger than the first forming a step. The labels have a dimension so that an inner diameter of the label forming an aperture or opening in the label is greater than the second internal diameter of the disc, preferably by an amount of 2 mm to 4 mm, and the label has an outer diameter which is less than the outer diameter of the readable or writable area, so that an annular ring of the readable area is visible around the periphery of the label.

Abstract: A ceramic article having a base made of an insulating ceramic material, the insulating ceramic material includes a metal element, and a conductive surface layer provided on the base, wherein the conductive surface layer includes carbon atoms as its main component, and wherein the conductive surface layer further includes silicon atoms and atoms of the metal element present in the insulating ceramic material.