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Proceedings Paper

Advanced 4.7-GB DVD-RAM with a 4X data transfer rate
Author(s): Shige-aki Furukawa; Kenichi Nishiuchi; Kenichi Nagata; Rie Kojima; Noboru Yamada
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Paper Abstract

We demonstrated the possibility of high data rate recording on a DVD-RAM disk which utilizes Ge-Sb-Te phase-change materials. To ensure high transfer rate overwriting on the DVD, quadruple speed (44Mbps) recording at a linear velocity of 16.4 m/s was tested using a Sn-added Ge-Sn-Sb-Te material as the recording layer. Double speed (22Mbps) recording on the present 4.7GB DVD-RAM at a linear velocity of 8.2 m/s was also tested. A CNR of more than 53 dB and an erasability of more than 30 dB were obtained at each double, triple and quadruple speeds. In addition, by recording via 8-16 random modulation signals, a jitter of 9 percent or less and a direct overwrite performance of 100,000 cycles were confirmed.

Paper Details

Date Published: 10 January 2002
PDF: 6 pages
Proc. SPIE 4342, Optical Data Storage 2001, (10 January 2002); doi: 10.1117/12.453441
Show Author Affiliations
Shige-aki Furukawa, Matsushita Electric Industrial Co., Ltd. (Japan)
Kenichi Nishiuchi, Matsushita Electric Industrial Co., Ltd. (Japan)
Kenichi Nagata, Matsushita Electric Industrial Co., Ltd. (Japan)
Rie Kojima, Matsushita Electric Industrial Co., Ltd. (Japan)
Noboru Yamada, Matsushita Electric Industrial Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 4342:
Optical Data Storage 2001

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