Blu Ray Disc

Wednesday, August 3, 2011

Blu-ray (not Blue-ray) also known as Blu-ray Disc (BD), is the name of a new optical disc format jointly developed by the Blu-ray Disc Association (BDA), a group of the world's leading consumer electronics, personal computer and media manufacturers (including Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson). The format was developed to enable recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data. The format offers more than five times the storage capacity of traditional DVDs and can hold up to 25GB on a single-layer disc and 50GB on a dual-layer disc. This extra capacity combined with the use of advanced video and audio codecs will offer consumers an unprecedented HD experience.

The name Blu-ray is derived from the underlying technology, which utilizes a blue-violet laser to read and write data. The name is a combination of "Blue" (blue-violet laser) and "Ray" (optical ray).

Despite the different type of lasers used, Blu-ray products can easily be made backwards compatible with CDs and DVDs through the use of a BD/DVD/CD compatible optical pickup unit. The benefit of using a blue-violet laser (405nm) is that it has a shorter wavelength than a red laser (650nm), which makes it possible to focus the laser spot with even greater precision. This allows data to be packed more tightly and stored in less space, so it's possible to fit more data on the disc even though it's the same size as a CD/DVD. This together with the change of numerical aperture to 0.85 is what enables Blu-ray Discs to hold 25GB/50GB.

According to the Blu-ray Disc specification, 1x speed is defined as 36Mbps. However, as BD-ROM movies will require a 54Mbps data transfer rate the minimum speed we're expecting to see is 2x (72Mbps). Blu-ray also has the potential for much higher speeds, as a result of the larger numerical aperture (NA) adopted by Blu-ray Disc. The large NA value effectively means that Blu-ray will require less recording power and lower disc rotation speed than DVD and HD-DVD to achieve the same data transfer rate. While the media itself limited the recording speed in the past, the only limiting factor for Blu-ray is the capacity of the hardware. If we assume a maximum disc rotation speed of 10,000 RPM, then 12x at the outer diameter should be possible (about 400Mbps). This is why the Blu-ray Disc Association (BDA) already has plans to raise the speed to 8x (288Mbps) or more in the future.

Blu-ray is currently supported by about 200 of the world's leading consumer electronics, personal computer, recording media, video game and music companies. The format also has support from all Hollywood studios and countless smaller studios as a successor to today's DVD format.


Express your comment on this article

 
Peerless
Posted on Tuesday, November 15, 2011

I didn't know where to find this info then kbaoom it was here.

cheat on your wife site why do husband cheat
cvs for sale cvs print coupons cvs pharmacy deals

Submit your comments...
     
Disclaimer: The views expressed here are strictly personal and IndiansinKuwait.com does not hold any responsibility on them. We shall endeavour to upload/publish as many of the comments that are submitted as possible within a reasonable span of time, but we do not guarantee that all comments that are submitted will be uploaded/published. Messages that harass, abuse or threaten other members; have obscene, unlawful, defamatory, libellous, hateful, or otherwise objectionable content; or have spam, commercial or advertising content or links are liable to be removed by the editors. We also reserve the right to edit the comments that do get published. Please do not post any private information unless you want it to be available publicly.
Image

Smart Investing - Diversification is the Mantra: Don’t keep all the eggs in one basket

Investment is an activity which everyone should be involved once they start earning. But where to i

Image

They are disconnecting…

“Why do I need to learn about India? After all, I am going to live here—in Kuwait—all my life… I wa

Image

I Learn Anew Every Day - Kevin Mathew

Kevin Mathew was the youngest (and only Indian) TEDx speaker at TEDxAlShuwaikh, Kuwait, on Septembe

Image

Wise Decision by Bhavans Middle East

The Chairman, Bhavans Middle East Mr. N. K Ramachandran Menon, and the Director of Bhavans Middle E

Image

“It was all over in three minutes ...”

She was sobbing inconsolably and words were intermittently coming out… “It was all over in about

Image

“On reaching the pinnacle, I called it a day”

She was all set to occupy the enviable top spot... was being hailed as the rightful heir of the zen

Image

“Politics is transient for me; writing is perpetual...”

One of those few politicians whose speeches and poems have won the hearts of masses alike - in Indi

Image

The War of Words

Another journalist is brutally killed. Gauri Lankesh, the editor of Lankesh Patrike is shot dead re

Image

Migration Norm Set: Safe Orderly and Regular Migration

“Global compact for safe, regular and orderly migration” The Norm on the Build. "Migrants are h

Image

The bogus words

A few days back I received a message on Whats App:If an assault with the intention of committing ra

Image

A nostalgic and delicious train journey in Kuwait at Kerala Express Restaurant

A train journey during our annual vacation in India is definitely a nostalgic experience for many o

Image

Mughal Mahal Exotica - An aromatic and exotic twist to Indian food

When it comes to Indian food in Kuwait, no doubt ‘Mughal Mahal’ set an example among the residents

Image

Experience Indian Corner Tandoori Nights at Al Manshar Rotana Hotel

Al Manshar Rotana Hotel at Fahaheel, Kuwait launched an authentic Tandoori Night with an Indian cor

Image

Biryani & Kebabi restaurant opened at Arabia Mall in Egila

Biryani & Kebabi is the newest addition to Al Sabah & Kohli food and beverage brands. Al Sabah & Ko

Image

TransFast Cricket League Season-02 ready to kick off

The Second edition of the TransFast Cricket League is set to kick off on 24th November 2017 at 25 g

Image

KIFL Goa FC Upset Indian Strikers

KIFF league 3rd week matches started with United Goans Centre (UGC) taking on Skynet Miracles SC.

Image

Boubyan Strikers Lifted The 4th Jimmy George Volley 2017

The four day long volleyball fiesta. A jam-packed volleyball tourney ended off fantabulously in the

Image

Amar Cricket Club presents Dawood A. H. Bebal Memorial Trophy

The opening ceremony of Dawood A. H. Bebal Memorial Trophy hosted by Amar Cricket Club, Kuwait took

Image

Kuwait Indian Football Federation (KIFF) Launch New Season 2017~18

The much awaited Kuwait Indian Football Federation (KIFF) Season 2017-18 kicked off on 27th October