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Blu-ray Disc

Blu-ray Disc

 

Blu-ray Disc is an optical disc format designed for high-density storage of High-Definition video, data and more.
Shorter wavelength of 405nm blue-violet laser enables the storage of more information on a 120mm CD/DVD-sized disc.
State-of-the-art stamping instrument using high-precision laser-cuttingcontrol technology is employed to realize an ultra-low-pitch data track.
Highly sensitive recording layer incorporates newly developed materials for high-speed recording.
The surface of the recording layer consists of a 0.1mm-thick cover layer with protective hard coat.
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.