Advanced 4.7-GB DVD-RAM with a 4X data transfer rate

Shige-aki Furukawa; Kenichi Nishiuchi; Kenichi Nagata; Rie Kojima; Noboru Yamada

doi:10.1117/12.453441

10 January 2002 Advanced 4.7-GB DVD-RAM with a 4X data transfer rate

Shige-aki Furukawa, Kenichi Nishiuchi, Kenichi Nagata, Rie Kojima, Noboru Yamada

Proceedings Volume 4342, Optical Data Storage 2001; (2002) https://doi.org/10.1117/12.453441
Event: Optical Data Storage, 2001, Santa Fe, NM, United States

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.

Citation Download Citation

Shige-aki Furukawa, Kenichi Nishiuchi, Kenichi Nagata, Rie Kojima, and Noboru Yamada "Advanced 4.7-GB DVD-RAM with a 4X data transfer rate", Proc. SPIE 4342, Optical Data Storage 2001, (10 January 2002); https://doi.org/10.1117/12.453441

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