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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