HD DVD vs. Blu-ray Disc

Author: Geoffrey Arado

Article:
DVD is very successful, and would definitely be around for quite
sometime. However, as implemented. It is not a high definition
format instead its just a typical output video. With the new
technology it is now being enhanced to provide people the best
quality of entertainment they ever wanted.

All the actions, all the adventures that we have right now can
definitely make you say I've got everything I want in an
entertainment. But what if there is something your eyes is
missing, something perfect, with 6 times resolution of standard
dvd. You are about to enter to entire the new world. Collect
clips of your favorite scene while the movie is playing. Go
behind the scene. Change camera angle High def and fully
connected online that allows you to download contents. The
future of high definition is here. Everything yow want just got
a whole lot better, spectacular high definition feature. You can
now own the movies you want with the entire new level of
interactivity. Below are the difference between Blu ray disc and
HD DVD,

Blu-ray Disc It is the next generation optical packaged media
disc format. It was named as Blu-ray for the reasons that the
laser beam which reads the data from the new discs is blue
violet instead of red. This so called blue laser disc technology
has a shorter wave length than a red laser, that makes it
possible to read data with greater precision. The format was
developed to enable recording, rewriting and playback of
high-definition video, as well as storing large amounts of data.
Great privilege of watching

HD DVD

The HD (High-Definition) DVD standard is designed to be the
successor to the standard DVD format, and is derived from the
same underlying technologies. It is a next-generation optical
disc format, featuring a significant increase in storage
capacity facilitating support for high definition (HD) video and
audio. The HD DVD name is derived from its origination as a
high-definition extension of the DVD optical disc format.

Technical Specification

Storage capacity Blu Ray Disc 25GB single layer 50GB double
layer HD DVD 15GB single layer 30GB double layer

Laser wavelength Blu Ray Disc - 405nm (blue laser) HD DVD -
405nm (blue laser)

diameter Blu Ray Disc - 120mm HD DVD - 120mm

Disc thickness Blu Ray Disc - 1.2mm HD DVD - 1.2mm

Protection layer Blu Ray Disc - 0.1mm HD DVD - 0.6mm

Hard coating Blu Ray Disc - Yes HD DVD - No

Data transfer rate (data) Blu Ray Disc - 36.0Mbps (1x) HD DVD -
36.55Mbps (1x)

Data transfer rate (video/audio) Blu Ray Disc - 54.0Mbps (1.5x)
HD DVD - 36.55Mbps (1x)

Video resolution (max) Blu Ray Disc - 1920 x 1080 (1080p) HD DVD
- 1920 x 1080 (1080p)

Video bit rate (max) Blu Ray Disc - 40.0Mbps HD DVD - 28.0Mbps

High-Def Market share

From the average consumer's stand-point, there is little
difference between the two technologies. Both formats offer
support for HD audio and video and they both have the potential
to emerge as the sole successor to DVD. Some of the major
differences are BD's higher production costs and superior
storage capacity of 23.3GB per layer vs HD's 15GB.

Other Interesting facts:

* The Nichi Corporation, who holds the design patents to the
Blu-ray's laser system, sits as an associate member of the HD
DVD Promotion Group.

* Even though Apple sits on the Blu-ray Board of Directors, its
DVD Studio Pro software supports authoring HD DVD media.

* Blu-ray, unlike HD DVD, requires a hard coating on its discs
because it's 0.5m closer to the surface. The polymer coating it
uses, called Durabis, was developed by TDK and is supposedly
extremely resilient and fingerprint resistant.

* The Java platform is mandatory on Blu-ray as it's the standard
for menus/multimedia (i.e. all Blu-ray systems must support JVM)

* DVD version of the Xbox 360 is rumored for the future.

* The first consumer Blu-ray device in the US market is expected
to be the PlayStation 3.

About the author:
Geoffrey Arado recommends the DVD
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