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Panasonic Introduces World's First 6x Write-Once Blu-ray Discs

Panasonic announced today that it has developed the world's first Write-Once Blu-ray Discs (BD-R) with 6x writing speed. The new discs will be available in Japan with both 25GB and 50GB capacities in July.

The new 6X discs have a maximum data transfer speed of 216Mbps, which is 20% faster than that of 16X DVD-R discs. The new discs have a wide power margin at any writing speeds from 1X to 6X. This enables high-quality recording, even if the drive's laser power fluctuates, resulting in greater overall drive compatibility.



Blu-ray disc drives compatible with 6X write-once Blu-ray discs are planned to be commercialized in Japan by the end of September 2008.

Specifications:

  6X BD-R
Format Name Blu-ray Disc Recordable Format Ver. 13
Model Number LM-BR25MDE LM-BR50MDE
Data Capacity 25GB 50GB
Layer Constitution Single Sided/Single Layer Single Sided/Dual Layer
Recording Format Phase Change Recordable
Laser Wavelength 405nm (Blue-violet Laser)
Objective Lens
Numerical Aperture (NA)
0.85
Disc Diameter/Thickness 120mm x 1.2mm
Track Pitch 0.32 μm
Minimum Mark Length 0.149μm
Data Transfer Speed 216Mbps(Max.)
Hard Coating YES

Source: Panasonic, Akihabara News


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