Blu-ray Disc
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Blu-ray Disc is an optical disc format designed for high-density storage of High-Definition video, data and more. |
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Shorter wavelength of 405nm blue-violet laser enables the storage of more information on a 120mm CD/DVD-sized disc. |
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State-of-the-art stamping instrument using high-precision laser-cuttingcontrol technology is employed to realize an ultra-low-pitch data track. |
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Highly sensitive recording layer incorporates newly developed materials for high-speed recording. |
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The surface of the recording layer consists of a 0.1mm-thick cover layer with protective hard coat. |
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Dual-layer discs enabling highly stable, 50GB capacity recording will
be introduced in the near future. |
SPECIFICATIONS
| Disc type |
BD-R (write once) |
BD-RE (rewritable) |
| Recording layer |
Single layer |
Dual layer* |
Single layer |
Dual layer* |
| Recording capacity |
25GB |
50GB |
25GB |
50GB |
| Recording layer |
Inorganic material |
Phase-change material |
| Laser wavelength |
405nm |
| Lens numerical aperture (NA) |
0.85 |
| Standard data transfer rate |
35.965Mbps |
| Disc diameter |
120mm |
| Disc thickness |
1.2mm |
| Cover layer |
0.1mm |
| Tracking |
Groove recording |
| Track pitch |
0.32µm |
| Shortest mark length |
0.149µm |
* Coming soon.
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