Blu-ray: A Primer

Blu-ray is an optical disc format, HD set-rival in the race DVDin
de-facto standard storage medium for HDTV. The HD-DVD vs. Blu-ray battle similar
that between Betamax and VHS and DVD + RW and DVD-RW.

Currently the major Hollywood studios in uniform in their support for Blu-Split
ray and HD-DVD, but most of the electronics industry is currently in a blue corner.

The main difference between these new actorsand optical disc recorders and current
The technology is that Blu-ray, as the name suggests, a blue-violet laser used to read
and writing of data, rather than a red. Blue light has a wavelength shorter than red
Light and after the Blu-ray Disc Association (BDA), which is made from,
including Sony, Philips, Panasonic, Pioneer, and this means that the laser
Spot can be focused with greater precision.

Blu-ray has a maximum capacity of 25 GB andThe dual-layer discs can store up to
50 GB - enough for four hours of HDTV. As HD-DVD, blue laser discs needed
a cart and the player and recorder capable of current DVD discs. Codecs
supported by Blu-ray include the H.264 MPEG-4 codec, which is part of the form
Apple QuickTime 7 and Windows Media 9 based VC-1.

The BDA says that the blue laser discs and even if the players are already shipping
Japan will not be available in the U.S.End of 2005 the first. E 'likely
that players will be very expensive initially, compared to DVD players. In Japan,
cost the equivalent of $ 2000. But as with any new technology, prices
rapid fall - especially the Blu-ray is competing with HD before this space
your stay.