Blu-ray, also known as Blu-ray Disc (BD), is the category of a next-generation optical disc format jointly developed through the Blu-ray Disc Association (BDA), a gaggle of the world’s leading consumer electronics, computer system and media manufacturers (including Apple, Dell, Hitachi, HP, JVC, LG, Mitsubishi, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, TDK and Thomson). The format was developed make it possible for recording, rewriting and playback of high-definition video (HD), as well as storing considerable amounts of data.
The format offers more than more the storage capacity of traditional DVDs and may save 25GB on a single-layer disc and 50GB with a dual-layer disc. This extra capacity combined while using advanced video and audio codecs will offer you consumers an unprecedented HD experience. Recent development by Pioneer has pushed the storage capacity to 500GB on the single disc by making use of 20 layers.
While current optical disc technologies for example DVD, DVDR, DVDRW, and DVDRAM rely on a red laser to see and write data, the brand new format runs on the blue-violet laser instead, hence the name Blu-ray. Regardless of the different form of lasers used, Blu-ray products can easily be made backwards works with CDs and DVDs by using a BD/DVD/CD compatible optical pickup unit.
The advantage of by using a blue-violet laser (405nm) is always that it features a shorter wavelength than the usual red laser (650nm), which means that we can focus the laser spot with even greater precision. This gives data to be packed more tightly and trapped in less space, so it’s possible to suit more data for the disc even though it’s the identical size as a CD/DVD. This alongside the change of numerical aperture to .85 is exactly what enables Blu-ray Discs to keep 25GB/50GB.
BD is now held by about 200 with the world’s leading electronics, laptop or computer, recording media, gaming and music companies. The format boasts support from all Hollywood studios and countless smaller studios as being a successor to today’s DVD format. Many studios in addition have announced that they may begin releasing new movies on Blu-ray Disc day-and-date with DVD, in addition to a continuous slate of catalog titles each month. For more info about Blu-ray movies, have a look at our Blu-ray movies and Blu-ray reviews section that provides details about new and upcoming Blu-ray releases, in addition to what movies are obtainable in the Blu-ray format.