| Autor: |
Masataka Yamaguchi, Masataka Yamaguchi, Takahiro Togashi, Takahiro Togashi, Satoshi Jinno, Satoshi Jinno, Hideo Kudo, Hideo Kudo, Eiji Muramatsu, Eiji Muramatsu, Shoji Taniguchi, Shoji Taniguchi, Akiyoshi Inoue, Akiyoshi Inoue |
| Zdroj: |
Japanese Journal of Applied Physics; March 1999, Vol. 38 Issue: 3 p1806-1806, 1p |
| Abstrakt: |
We developed a rewritable optical disc with 4.7 GB/side capacity as an extension of the digital versatile disc recordable (DVD-R) system. The disc is readily playable on a read-only DVD player or a DVD-ROM drive with a small firmware modification. As far as the fundamental characteristics of the disc which adopts an in-groove recording are concerned, the reflectivity is 18% or more, modulated amplitude is 60% or greater, and jitter is 8% or less. As we had sufficient differential phase detection (DPD) tracking error signals from the recorded disc, we think the DPD tracking method is practical. These results cleared the single-layer DVD-ROM specifications except for the reflectivity. The measured reflectivity satisfies the specifications of the dual-layer DVD-ROM disc. Furthermore we confirmed that the recorded disc was playable on a blue laser playback system. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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