Patent ID: 7132149

Claim:
A data storage medium, comprising: a substrate comprising an amorphous thermoplastic resin having a heat distortion temperature of at least about 140° C. measured at 66 pounds per square inch according to ASTM D648; a reflective metal layer; and a haze-prevention layer interposed between the substrate and the reflective metal layer, wherein the haze-prevention layer comprises a metal having a tensile modulus of at least about 15×10 6 pounds per square inch measured at 25° C. according to ASTM D638; wherein the haze-prevention layer comprises at least about 50 weight percent of a metal selected from antimony, chromium, cobalt, irridium, iron, molybdenum, nickel, palladium, platinum, rhenium, rhodium, tantalum, titanium, tungsten, and vanadium; and wherein the haze-prevention layer contacts the substrate and the reflective metal layer.