Capacity: 800MB/90minDisc diameter: 120mmCentre hole diameter: 15mmThickness: 1.2mmSubstrate: polycarbonateRecording layer: phthalocyanineReflective layer: silverProtective layer: lacquerPacking:Spindle, cake box (10pcs, 25pcs, 50pcs or 100pcs), slim case, jewel case, envelopeDescription:SAST CD-Rs undergo testing extremes of heat, humidity and light exposure and have long-term storage stability in excess of 100 years. All SAST CD-Rs conform to Orange Book II standards allowing recording of all CD formats (subject to hardware/software capability) and are tested in all leading writers and readers.