Overview

Blu-ray


Related Overviews

 

'Blu-ray' can also refer to...

 

More Like This

Show all results sharing this subject:

  • Computing

GO

Show Summary Details

Quick Reference

An optical disk format. Developed by a consortium of over 180 companies led by Sony, Blu-ray disks are to intended to supercede the DVD both for the distribution of video and for data storage – Blu-ray disks can hold up to 25 Gb on each of up to two layers. Like its rival HD DVD format, it achieves this greater capacity by using a “blue”(actually, a violet) laser rather than the red laser used for DVDs; the shorter wavelength allows the beam to be focused more precisely and so more data to be packed into a given space. Currently (2008) some high-definition DVDs have been released in Blu-ray format, and computer Blu-ray drives are becoming available. The prospects for Blu-ray were considerably enhanced by the effective demise of HD DVD in early 2008.

Subjects: Computing.


Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.