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2╚ Blu-ray Disc from Pioneer and TDK

Just wonderful — the standard is still draft, but the speed is already doubled! :-) Pioneer and TDK both members of next generation DVD standard developers group — Blu-ray Disc, today announced the development of Blu-ray discs with 2X recording capability.

New discs are supposed to be fully compatible with 1╚ samples. They feature new magnetic coating metallic material. Other features:

  • Storage capacity: 23.3/25 Gb
  • Laser wavelength: 405 nm ("blue" laser)
  • NA: 0.85
  • Data transmission rate: 36 (1╚) and 72 (2╚) Mbps
  • Disc diameter: 120 mm
  • Disc thickness: 1.2 mm (with Optical Penetration Protection of 0.1 mm)
  • Track pitch: 0.32 Ům
  • Pit length: 0.16/0.149 Ům
  • Record side density: 16.8/18.0 Gbit/sq.inch
  • Record power: 4.5~6.0 mW

The companies plan to show the new technology at the international ISOM/ODS2002 conference to be held on July, 7-11 on the U.S. Hawaii island (the State of Hawaii).

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