What is blu-ray, Hard coat surface – Verbatim Blue-Ray Disc Player User Manual

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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 fi lm
studios and PC companies, including our parent company, Mitsubishi Kagaku Media. Verbatim, as a subsidiary of
MKM, has therefore, fi rst 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 Benefi ts

• 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 fi les (3.3MB)
- Video / HDTV Recording
- Development of video games and software
- Premastering for Film and TV Studios
- Data / Software distribution

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
benefi t from the Hard Coat protective layer, which was
developed originally by Verbatim. This layer protects

from fi ngerprints, 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
Hard Coat prevents from fi ngerprint smudging,
an essential feature for Blu-ray recording.

Hard Coat surface

Finger print
proof

Scratch proof

Static proof

Water proof

Dust proof

After Steel-wool Test

Without Hard Coat

Level 1

Verbatim

Hard Coat

Competitor

A

Level 2

Level 3

With Hard Coat

Artifi cial Fingerprint Test - No fi ngerprint smudging

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