Blu-ray Technology
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What is Blu-ray?
Blu-ray discs (BD) get their name from a combination of the words blue and optical ray. The format was developed
by the Blu-ray Discs Association (BDA), which is made up of a group of leading consumer electronics, major film
studios and PC companies, including our parent company, Mitsubishi Kagaku Media. Verbatim, as a subsidiary of
MKM, has therefore, first hand access to the latest in Blu-ray technology.
Our Research and Development team enables us to be at the forefront of Blue Laser Technology and and we are
currently looking into producing 6x speed discs and quad-layer 100GB capacity discs.
The Blu-ray disc’s higher storage capacity is enabled by a blue laser that has a shorter wavelength than the standard
red laser used in CD (780nm) and DVD (650nm) technology. Blu-ray disc utilises a blue laser with a wavelength of only
405nm combined with a strong lens system with a numerical aperture of 0.85. This results in a ultra-small laser spot
which allows writing smaller data pits which increases the amount of data on the disc. Due to the small data entry spot
on the disc surface hard coating is needed on Blu-ray discs.
Features and Benefits
• Mitsubishi Kagaku Media, Verbatims parent company, have perfected the Blu-ray technology with on-going research
and development to assure offering the best products on the market.
• Verbatim’s BD-R discs have a newly developed inorganic recording layer called MABL, this patented
technology ensures superb quality recording, long archival lifetime and excellent “playback” performance.
• Verbatim’s proven production technology and experience ensures perfect recording on every Blu-ray disc
supplied to our customers. Therefore Verbatim offers the same lifetime warranty for Blu-ray that it offers to each
of its CD and DVD discs.
• Blu-ray disc usage:
- Data Storage & Backup: 5 movies DVD quality, 4800 Photos of 5MB, 7200 MP3 files (3.3MB)
- Video / HDTV Recording
- Development of video games and software
- Premastering for Film and TV Studios
- Data / Software distribution
Hard Coat surface
Some discs are handled extensively, for example,
8cm discs that are constantly placed in and out of
the Camcorder in external environments. To protect
from potential damage, all Verbatim Blu-ray discs
from fingerprints, dust, scratches, static and water.
See below 2 examples. The left hand image shows
a disc comparison for typical scratch resistance.
The right hand image shows how Verbatim’s
benefit from the Hard Coat protective layer, which was Hard Coat prevents from fingerprint smudging,
developed originally by Verbatim. This layer protects
an essential feature for Blu-ray recording.
After Steel-wool Test
Artificial Fingerprint Test - No fingerprint smudging
Level 1
Level 2
Level 3
Verbatim
Hard Coat
Without Hard Coat
Competitor
A
With Hard Coat
Static proof
Scratch proof
Water proof
Dust proof
Finger print
proof
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How a BD Disc Works
Data
Laser
Hard Coat Layer
Cover Layer
Protective Layer
Recording Layer
Protective Layer
Reflective Layer
Polycarbonate Layer
Disc Label
Minimum pit length = 0.15μm Track pitch = 0.32μm Capacity = 25GB
Blu-ray Specifications The Range
BD-R / RE
Capacity
Speed
2x
Pack Style
Part No
43613
43689
43691
43615
BD-R
(Write-once)
BD-RE
(Re-writable)
Disc Type
BD-R
25GB/ 135min
25GB/ 135min
50GB/ 270min
25GB/ 135min
5 Pack Jewel Case
10 Pack Spindle
10 Pack Spindle
5 Pack Jewel Case
Single
layer
Dual
layer
Single
Dual
layer
BD-R
4x
Recording Layer
Recording capacity
Recording layer
Laser wavelength
layer
BD-R
2x
25GB
50GB
25GB
50GB
BD-RE
2x
Inorganic
material
Phase-change
material
BD-R Printable
Capacity
Speed
Pack Style
Part No
405 nm
405 nm
BD-R Printable
25GB/ 135min
4x
5 Pack Jewel Case
43669
BD-R Printable
25GB/ 135min
4x
25 Pack Spindle
43690
Lens numerical
aperture (NA)
0.85
0.85
Standard data
transfer rate
BD-R / RE
Dual Layer
36 Mbps
36 Mbps
Capacity
Speed
Pack Style
Part No
BD-R DL
50GB/ 270min
50GB/ 270min
2x
2x
5 Pack Jewel Case
5 Pack Jewel Case
43673
43619
Disc diameter
Disc thickness
Cover Layer
120 mm
1.2 mm
0.1mm
120 mm
1.2 mm
0.1mm
BD-RE DL
8cm BD-R / RE
8cm BD-R
Capacity
7.5GB
Speed
2x
Pack Style
Part No
43661
43663
5 Pack Jewel Case
5 Pack Jewel Case
Groove
recording
Groove
recording
Tracking
8cm BD-RE
7.5GB
2x
Track pitch
0.32 μm
0.32 μm
MABL = Metal Ablative Recording Layer.
A specially created inorganic recording layer present
on Verbatim’s BD-R media ensures excellent recording
compatibility and prolonged stability for archival life.
Shortest mark length
0.149 μm
0.149 μm
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68573-106/GB/5000/0807
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