Basic HTML Version
6
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-cutting-
control 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.
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
SPECIFICATIONS
HD DVD
■
A 120mm-diameter HD DVD disc stores HD video and other data
recorded onto it by a 405nm wavelength blue-violet laser.
■
Made using a high-precision stamping instrument for narrower data
track pitch and fine, sharp groove shape.
■
High-precision disc molding and bonding technologies achieve stable
mechanical and optical characteristics.
■
Newly developed organic dye featuring a revolutionary recording
mechanism matches the short wavelength laser.
■
New HD-BCM (Bismuth Coupling Material) phase-change recording
layer provides high S/N ratio and long archive life.
■
Dual-layer technology produces two recording layers for high-density
data recording.
Disc type
HD DVD-R (write once)
HD DVD-RW (rewritable)
Recording layer
Single layer
Dual layer*
Single layer*
Dual layer*
Recording capacity
15GB
30GB
15GB
30GB
Recording layer
Inorganic dry material Phase-change material
Laser wavelength
405nm
Lens numerical aperture (NA)
0.65
Standard data transfer rate
36.55Mbps
Disc diameter
120mm
Disc thickness
1.2mm (0.6mm + 0.6mm)
Tracking
Groove recording
Track pitch
0.40µm
Shortest mark length
0.204µm
SPECIFICATIONS
* Coming soon.
* Coming soon.