Definition – What does Blu-ray mean?
Blu-ray is a high-capacity optical disk medium created for recording, rewriting and playing back HD video. The disk can store a large amount of data and be designed to supersede the DVD. While the CD can hold up to 700MB of data and basic DVD can hold 4.7GB of data, a Blu-ray disk can hold more than 25GB of data. Even a dual layers DVD can hold 17GB of data, but the Blu-ray dual layers disk can hold 50GB of data.
Glossary Web explains Blu-ray
Blu-ray was jointly created by a group of personal computer and consumers electronics companies known as the Blu-ray Disc Association. The disk support higher resolution and more latest audio and video format compared to CDs or DVDs. The technology gets its name from the blue-violet laser that is used to read Blu-ray disks. As compared to a DVDs red laser, the blue laser permits more details to be stored at the greater density.
Blu-ray is currently supported by more than 200 world’s leading consumer electronics, PCs, recording media, video games, and media companies. The technology also has support from all Hollywood studios and countless smaller studios as a successor today’s DVD format. Most of the studios have also announced that they will begin releasing new feature films on Blu-ray discs day and date with DVD a well as continues a slate of catalog titles every month.