Blu-Ray is an optical disc format designed to display high definition (HD) videos and store large amounts of data. Blu-ray is the successor to DVD. Hitachi, LG, Panasonic, Pioneer, Philips, Samsung, Sharp, Sony, and Thomson developed the standard collaboratively. It became the default optical disc standard for HD content and optical data storage after winning a format war with HD-DVD, the format promoted by Toshiba and NEC.
The format’s name comes from the fact that a blue laser reads from and writes to the disc instead of the red laser of DVD players. The blue laser has a 405nano meter wavelength that can focus more tightly than the red lasers used for writable DVD. Consequently, a Blu-ray disc will store much more information in the same 12 cm space. Blu-ray uses phase change technology to enable repeated writing to the disc just like the rewritable DVD formats.
Blu-ray’s standard storage capacity is enough to store a continuous backup copy of most of the people’s hard drives on a single disc. Initially, the format had a 27 GB single-sided capacity and 50 GB on dual-layer discs. Single-sided Blu-ray discs will store up to 13 hours of standard video data, compared to single-sided DVD’s 133 minutes. In July 2008, Pioneer declared that they’d found a way to extend capacity to 500 GB by creating 20-layer discs.
Blu-ray also features data streams at thirty-six megabits per second (Mbps), quick enough for top quality video recording. Blu-ray discs won’t play on current CD and DVD players, because those players lack the blue-violet laser needed to read the discs. If the appropriate lasers are included, however, Blu-ray players will play the other 2 formats. Blu-ray disc players (BDPs) are available from a variety of manufacturers, including Panasonic, Pioneer, Samsung, and Sony. Sony’s PlayStation 3 also includes a Blu-ray drive installed.
The BD format was developed by the Blu-ray Disc Association, a group representing manufacturers of client electronics, computer hardware, and motion photos. Sony unveiled the primary Blu-ray disc prototypes in October 2000, and the 1st prototype player was released in April 2003 in Japan. Afterward, it continued to be developed until its official release on June 20, 2006, starting the high-definition optical disk format war, where Blu-ray Disc competed with the HD DVD format. Toshiba, the main company supporting HD DVD, conceded in February 2008 and later discharged its own Blu-ray Disc player in late 2009. according to Media research, high-definition software sales in the united states were slower in the 1st 2 years than DVD software sales. Blu-ray faces competition from video on demand (VOD) and also the continued sale of DVDs. Notably, as of January 2016, 44% of U.S. broadband households had a Blu-ray player.
Blu-ray is an optical disk format like CD and DVD. it had been developed for recording and playing back high-definition (HD) video and for storing massive amounts of information. while a CD will hold 700 MB of data and a basic DVD will hold 4.7 GB of information, a single Blu-ray disc will hold up to 25 GB of data. Even a double sided, dual layer DVD (which are not common) will only hold 17 GB of information. Dual-layer Blu-ray discs will be able to store 50 GB of information. that’s similar to 4 hours of HDTV.
Blu-ray discs will hold a lot of information than other optical media because of the blue lasers the drives use. The laser is actually blue-violet, however, “Blu-ray” rolls off the tongue a little easier than “Blu-violet-ray.” The blue-violet laser has a shorter wavelength than the red lasers used for CDs and DVDs (405nm compared to 650nm). this enables the laser to focus on a smaller area, that makes it possible to cram significantly a lot of information on a disc identical size as a CD or DVD. Proponents of the Blu-ray format say they expect Blu-ray devices to replace VCRs and DVD recorders as more people build the transition to HDTV.
A Blu-ray disk (BD) is a high-capacity optical disc medium developed for recording, rewriting and enjoying back high definition video. It will store massive amounts of information and was designed to supersede the DVD.
Blu-ray was jointly developed by a group of personal pc and consumer electronics corporations known as the Blu-ray Disc Association. Blu-ray disks support higher resolutions and a lot of advanced video and audio formats compared to DVDs.
Compared to a DVD, Blu-ray additionally offers much higher resolution; while a DVD with standard definition will provide a definition of 720×480 pixels, Blu-ray high definition has 1920X1080 pixel resolution.
BD-Live needs 2 main elements a Blu-ray player that supports the Profile 2.0 (BD-J 2.0) system and an internet connection to the player.
Before watching BD-content with your kids, it is important to understand that the MPAA doesn’t rate any BD-Live content nor is the content regulated. each corporation is free to use the format. corporations like Disney have announced plans to use BD-Live on a majority of upcoming titles while other corporations haven’t declared plans.
On certain Blu-ray discs, people are able to chat, very similar to on Instant messenger, with friends or send and receive mail. various community forums are possible. Some studios, like Disney, need a BD-Live account to be set up, however, if children know the account data, they’ll still access public forums or send and receive messages.