05-02-2013, 09:37 AM
BLUE RAY TECHNOLOGY ABSTRACT
ABSTRACT
Blu-ray is the name of a next-generation 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.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 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. While current optical disc technologies such as DVD, DVD±R,
DVD±RW, and DVD-RAM rely on a red laser to read and write data, the
new format uses a blue-violet laser instead, hence the name Blu-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.Blu ray also promises some
added security, making ways for copyright protections. Blu-ray discs can
have a unique ID written on them to have copyright protection inside the
recorded streams. Blu .ray disc takes the DVD technology one step further,
just by using a laser with a nice color.