What is a "Blue Ray Disc"?

Answer 1

good question. A Blu-ray Disc is a high-density optical disc format for the storage of digital media, including high-definition video.The name Blu-ray is derived from the blue-violet laser used to read and write this type of disc. Because of this shorter wavelength (405 nm), substantially more data can be stored on a Blu-ray Disc than on the common DVD format, which uses a red, 650 nm laser. In comparison to HD DVD, which also uses a blue laser, Blu-ray Disc has more information capacity per layer (currently 25 GB, but test media is up to 33 GB). However Blu-Ray discs are expected to be more expensive than HD DVD discs, at least initially. Sony has released 50 GB recordable BDs and will soon be releasing 50 GB rewritable discs.[1]

The Blu-ray Disc is a similar format to PDD, another optical disc format developed by Sony (which has been available since 2004) but offering higher data transfer speeds. PDD was not intended for home video use and was aimed at business data archiving and backup, although currently it is gaining popularity as a HD video format medium and PlayStation 3 medium. The UDO format is aimed at similar purposes. Blu-ray is currently embroiled in a bitter format war against the HD DVD disc.The Blu-Ray Disc standard was jointly developed by a group of consumer electronics and PC companies called the Blu-ray Disc Association (BDA). It is currently competing with the HD DVD format for wide adoption as the preferred next generation optical standard, similar to the videotape format war between JVC's VHS and Sony's Betamax. As of 2006, neither the Blu-ray Disc nor the HD DVD has succeeded in supplanting the present home video standard, the DVD.

The Blu-ray Disc Association unveiled their plans for a May 23, 2006 release date at the Consumer Electronics Show (CES) in January 2006. Since then, Blu-ray Disc was delayed 4 times, but eventually shipped in the U.S. on December 2006.

Currently available BD-ROM and recordable discs store up to 50 gigabytes (using 2 layers.)

this ia about all u need to know about it. but if u want more info go to the following website,

http://en.wikipedia.org/wiki/Blue_ray_disc

take care.

Answer 2

In short, it's about storage capacity and high definition. BluRay is a new DVD format that is recorded in high definition (1080p) and stores up to 50GB. A regular DVD is recorded in (480p) and stores up to 9GB.

As you can see, BluRay movies would have 2.5 times the resolution (more detail) and can store 5 times more content (more extras, high quality sound).

You need a BluRay DVD player to read a BluRay disc. You cannot use a standard DVD player to read a BluRay disc.

Sounds like a great technology, right? Great technology, but ridiculously priced...for now. It costs around $1000 for a DVD player. Plus, there is another high definition DVD format called HD-DVD that has the same benefits, but different format, which means different type of DVD player. Right now, there is a format war.

I advise people to wait until the format war is over and the prices drop down to more reasonably prices. Also, until you can afford a HDTV, there is really no point in buying a high definition DVD player because you cannot take advantage of the high resolution video.

Answer 3

It's a new format for HD-quality picture on DVD, which is competing with another format called HD-DVD. Blu Ray is backed by Sony (the PS3 has a built-in Blu-Ray player) while HD-DVD is backed by Toshiba. Microsoft has released an HD-DVD add-on player for the Xbox 360.

Right now, no one knows which format will win- it's like the early days of VHS vs Beta, people don't want to buy the one that doesn't catch on.

Answer 4

Its like a DVD but can store larger content. Its on the PS3

Answer 5

i dont know! i wanna kno tho... i've always wondered that....