Detailed Product Description Features: High quality write-once recordable compact disc Permanently stores any digitized data. Excellent for commercial duplication, system back-up, file and image storage, electronic Publication testing for CD-ROM, VCD and CD-Audio Conforms to Orange Book Part II standard Disc Dimensions: Outer diameter:120 +/-0.3mm Inner diameter:15 +/-0.1mm Thickness:1.2 +/-0.3mm Recording area:46mm to 116mm Protective layer: UV-curing resin Format: Recording time:74 miniutes/80 minutes/99 minutes Storage capacity:650MB/>700MB/>875MB Track pitch:15 to 1.7 micrometer for 80 minutes Technical data: Writing speed:1X/2X/4X/6X/8X/12X/16X/24X/32X/40X/48X/52X Applications: General purpose or digital audio Estimated life: >100years >30 years Cross talk: <0.40 Track eccentricity: Less than 70 micrometer