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Tuesday, July 3, 2007
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Panasonic Develops 4x Blu-Ray Burner
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Matsushita Electric Industrial Co., Ltd announced today the development of a new Blu-Ray drive capable of recording at
4x on single/dual layer BD-R media.
Key component of the new drive is its new laser diode, which
is offering writing /reading of dual-layer BD-R media (50GB)
at 4x, despite the fact that it just features a relatively
low output of 130mW. Until now, such a laser power has been
considered as efficient for 2x BD-R burnings only. However,
Panasonic has applied a laser light adjustment technology
that effectively optimizes the quality of the laser light,
allowing for burning at 4x using a low-power power. With
conventional methods, Blu-Ray recording at 4x requires a
180mW laser.
In addition, the new drive features a system that
automatically adjusts the laser characteristics in real time,
in order to deliver the optimum recording conditions. Noise
and distortion signals are also filtered from the read-out
signal when accessing 50GB BD-R media, allowing reading of
the discs even at speeds of 4x.
The drive is build according to the recently released
"Blu-ray Disc Recordable Format Part 1 Version 1.2"
standard.
The new drive is able to write 25GB of data in 23 minutes, and 50GB in 43 minutes, using a 4x CLV writing strategy.
Panasonic also expected to release its first 25GB BD-R media
for 4x recording by the end of the month. 50GB BD-Rs should
be expected later this September.
Currently, Hitachi LG Data Storage is also offering 4x
recording for BD-R media, aiming at 6x with its upcoming
GGW-H20L BD burner (July). Pioneer is also expected to offer
4x BD-R writing with its second generation of BD drives. |
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