Maxell has achieved a disc which has the durability of over 1,000 rewritable cycles. The Maxell CD-RW can be used on Multi read CD-ROM drives with AGC (Auto Gain Control) circuit. Maxell CD-RW High Speed Discs are for use exclusively with High Speed CD-RW drives (4x to 10x). Maxell CD-RW Discs are ideally suited for 1,2 and 4x speed recorders. Our CD-RW discs will be compatible with the next generation of CD-ROM and DVD-ROM drives thereby opening up new applications of use. CD-RW80 High Speed New highly reliable MQ (Master Quality) disc for 4x to 10x recording. Item Unit CD-RW 80 /CD-RW 80 High Speed Recording Capacity MB 700 Recording Film Material - Phase Change Alloy Reflection Rate % 15~25 Substrate Material - Polycarbonate Track Pitch µm 1.6 Recording Area (User Area) mm 50~116 Track Eccentricity µm Less Than 70 Tilt ° Less Than 0.4° Write Power - 8 ~ 14m (At 1:785nm, NA: 0.5) Read Power mW 1 Read Stability - More Than 106 Times (Read Power = 1mW) Overwrite Cyclability - 1,000 Times Operating Conditions - -5 ~ 55°C, 5 ~ 95% RH Dimensions External Diameter mm ø120 Internal Diameter mm ø15 Overall Thickness mm 1.2