What is Blu-ray Disc and its feature?

It’s all about Blu-ray. We always hear the word next generation in most advertisement and right now I am going to give the information the new format for high quality video, introducing The Blu-ray Disc. Blu-ray is also known as Blu-ray Disc. It is so called next generation optical disc format developed by a group of the world's leading consumer electronics, personal computer and media manufacturers (including Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson). Their grouped was named Blu-ray Disc Association (BDA). The Blu-ray format was developed to enable recording, rewriting and playback of high-definition video, also used in storing large amounts of data. The disc can hold up to 25GB. Actually the single sided disc can hold up to 25GB and the double sided disc can hold up to 50GB, pretty big right?

The new format is using blue-violet. Despite the different type of lasers used, Blu-ray products can easily be made backwards compatible with CDs and DVDs . Since Blu-ray disc is using blue-violet laser, the characteristic of it is that it has a shorter wavelength than a red laser (650nm), which makes it possible to focus the laser spot with even greater precision. This allows data to be packed more tightly and stored in less space, so it's possible to fit more data on the disc even though it's the same size as a CD/DVD.

If you want to know more about Blu-ray, follow the link here “ask engineer about blu-ray”.