Blue ray disk ????

Question

what is this

Answer 1

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). Several manufacturers have released 50 GB recordable BDs and rewritable discs.[1]. All supporting studios have either already released or have announced release of movies on 50GB discs.

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 an HD video format medium. The UDO format is aimed at similar purposes. Blu-ray is currently embroiled in a bitter format war against the HD DVD disc.



http://www.blu-raydisc.com/

Answer 2

Hi!

This is the next generation disk to replace CDs and DVDs...
A blue disk usually has about 25-40 GB. It's named this way because the disk is written using a blue laser, not a red or orange one (CD and DVD).
Now, since blu laser wave has smaller length it allows for more precise positioning and for smaller bit surface on the disk (basic physics).

I believe they would eventually be replaced with Hyped CDs (100 GB - 10 TB)

http://www.dntb.ro/users/frdbuc/hyper-cdrom/hyper.htm

Good luck!

Answer 3

Imagine a DVD and a black hole have a baby.
The blue ray holds more than double the data of the standard dvd. In a player its suppose to deliver an even higher quality viewing than a dvd.

cnet.com can fill in the details

Answer 4

It is like a DVD but holds a lot more information. You need a Blue-Ray disc player to play them, Blue-Ray players also play DVD's.