I have seen them in ads evreywhere on the internet. what are they?
2006-07-20 17:35:10 · 7 answers · asked by John Doe 1 in Consumer Electronics ➔ TVs
Blu-ray is a new High Definition (HD) video disc format. The discs are the same size as DVDs and CDs but they pack in a whopping 50GB of video, music, or data vs 9GB or 0.7GB for DVD and CD. A key technology that makes this possible is new blue light laser diodes (hence the name Blu-ray) rather than the red light laser diodes used by DVD and CD.
This means that they can display beautiful HD movies that are even higher resolution (1920 x 1080p) than most HD TVs on the market today. Howevery, a Blu-ray HD disc player will even work with plain old NTSC (480i) non-HD, non-digital television.
Blu-ray promises a big upgrade to DVDs fulfilling the promise of HD home theater.
There is another standard backed by other manufacturers called HD-DVD as well that has similar properties but lower storage capabilities than Blu-ray today.
2006-07-20 17:47:53 · answer #1 · answered by Knowledge Seeker 6 · 1⤊ 0⤋
basically, a disc that holds more than 5 times more than a dvd. it has a tough protective layer so no matter how much u scratch it, the data will be fine. instead of using a normal red laser to read it, a blu-ray player uses a blue laser.
2006-07-21 14:47:32 · answer #2 · answered by Milanakin:) 2 · 0⤊ 0⤋
a disc that plays movies in High Def. If you have an HD tv and you want real HD, Blu ray will be your answer.
2006-07-21 00:39:39 · answer #3 · answered by sly 4 · 0⤊ 0⤋
It is one format for putting High Definition TV on a disk. Sony created it and is trying to make it THE FORMAT; I hope they succeed every bit as well as they did with Betamax videotape.
2006-07-21 00:42:14 · answer #4 · answered by heinlein 4 · 0⤊ 0⤋
The future of movies; hopefully (and PS3 games).
2006-07-21 01:04:13 · answer #5 · answered by toolfan9000 2 · 0⤊ 0⤋
http://www.blu-ray.com/info/
2006-07-21 00:38:28 · answer #6 · answered by Anonymous · 0⤊ 0⤋
look it up on wikipedia
2006-07-21 00:38:23 · answer #7 · answered by Anonymous · 0⤊ 0⤋