Verbatim \ Blu-ray HD DVD, Brochure, Page: 6 / 6

68444-106/GB/5400/0607
Blu-ray Specifi cations
Disc Type
HD DVD-R
(Write-once)
HD DVD-RW*
(Re-writable)
Recording Layer
Single
layer
Dual
layer
Single
layer
Dual
layer
Recording capacity 15GB 30GB 15GB 30GB
Recording layer
Organic dye
material
Phase-change
material
Laser wavelength 405 nm 405 nm
Lens numerical
aperture (NA)
0.65 0.65
Standard data
transfer rate
36.55 Mbps 36.55 Mbps
Disc diameter 120 mm 120 mm
Disc thickness
1.2 mm
(0.6mm + 0.6mm)
1.2 mm
(0.6mm + 0.6mm)
Tracking
Groove
recording
Groove
recording
Track pitch 0.40 μm 0.40 μm
Shortest mark length 0.204 μm 0.204 μm
* Specifi cations of HD DVD-RW have yet to be fi nalised
Disc Type
BD-R
(Write-once)
BD-RE
(Re-writable)
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 405 nm 405 nm
Lens numerical
aperture (NA)
0.85 0.85
Standard data
transfer rate
36 Mbps 36 Mbps
Disc diameter 120 mm 120 mm
Disc thickness 1.2 mm 1.2 mm
Cover Layer 0.1mm 0.1mm
Tracking
Groove
recording
Groove
recording
Track pitch 0.32 μm 0.32 μm
Shortest mark length 0.149 μm 0.149 μm
Specifi cations
HD DVD Specifi cations
Roadmap
Q1 2007 Q2 2007 Q3 2007 Q4 2007 2008 2009
BD-R
25GB
2x 4x 6x 8x
BD-RE
25GB
2x 4x
BD-R
50GB
2x 4x 6x
BD-RE
50GB
2x 4x
BD-R/RE
8cm
2x
HD DVD-R
15GB
1x 2x 4x 6x
HD DVD-R
30GB
1x
HD DVD-RW
15GB
2x