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1 July 1991 Highly reliable 7-GB, 1.2- to 2.2-MB/s, 12-inch write-once optical disk
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Proceedings Volume 1499, Optical Data Storage '91; (1991) https://doi.org/10.1117/12.45918
Event: Optical Data Storage, 1991, Colorado Springs, CO, United States
Abstract
In order to extend an application area of 12 inch write once optical disks, both a larger data capacity and higher data transfer rate are required, which in turn requires more advanced reliability and durability. This paper describers a double sided 7GB twelve inch diameter disk suitable for high data transfer (1.2-2.2 MB/s) application. A storage data capacity is increased by using both the pit- edge method and the Modified Constant Angular Velocity (MCAV) method. The corrosion resistant Te based ternary alloy recording layer has an excellent pit length characteristics and less thermal interference, which results in wide jitter margin in the pit edge detection. The high speed disk rotation gives the high data transfer rate. Acceleration tests prove a disk life longer than 45 years.
© (1991) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Hitoshi Watanabe, Eiji Koyama, T. Nunomura, T. Taii, Michio Miura, Akira Gotoh, Tetsuya Nishida, Shinkichi Horigome, and Norio Ohta "Highly reliable 7-GB, 1.2- to 2.2-MB/s, 12-inch write-once optical disk", Proc. SPIE 1499, Optical Data Storage '91, (1 July 1991); https://doi.org/10.1117/12.45918
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