Blu ray disc.
The current standard for removable disc media.
The Blu ray disc gets its name from the color of the laser used to read from and write to the disc.
Due to the high capacity storage of Blu ray discs, high definition HD content can easily be stored
on Blu ray discs without a loss in quality.
Diameter 120mm.
Same as a CD and DVD.
Type of laser used to write data.
405 m Blu laser.
Maximum capacity of a DVD, 27GB and 50GB, double layer Blu ray.
The Blu ray disc, BD, often known simply as Blu ray, is a digital optical disc storage format.
It is designed to supersede the DVD format and capable of storing several hours of high definition video.
HDTV 720 and 1000 and ATP.
The main application of Blu ray is as a medium for video material such as feature films and for the
physical distribution of video games For the PlayStation three, PlayStation four, PlayStation five,
Xbox One and Xbox Series X.
The name Blu ray refers to the blue laser, which is actually a violet laser used to read the disc,
which allows information to be stored at a greater density than is possible with the longer wavelength
red laser used for DVDs.
The polycarbonate disc is 120mm, 4.7in in diameter and 1.2mm 0.047in thick, the same size as DVDs
and CDs.
Conventional or pre bdxl Blu ray discs contain 25GB per layer with dual layer discs, 50GB being the
industry standard for feature length video discs.
Triple layer discs.
100GB and quadruple layered discs.
128GB are available for Bdxl Rewriter Drives High definition HD video may be stored on Blu ray discs
with up to 1920 x 1080 pixel resolution at 24 progressive or 50/60 interlaced frames per second.
DVD video discs were limited to a maximum resolution of 480 NTSC 720 x 480 pixels or 576 lines curved
625/50.
720 x 576 pixels commonly used with pal.
Besides these hardware specifications, Blu ray is associated with a set of multimedia formats.
The BD format was developed by the Blu ray Disc Association, a group representing makers of consumer
electronics, computer hardware and motion pictures.
Sony unveiled the first Blu ray disc prototypes in October 2000, and the first prototype player was
released in Japan in April 2003.
Afterward, it continued to be developed until its official worldwide release on June 20th, 2006,
beginning the high definition optical disc 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 released 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
first two years than DVD software sales.
Blu ray faces competition from video on demand, VOD and the continued sale of DVDs.
In January 2016, 44% of US broadband households had a Blu ray player for playback of 4K content.
The BDA introduced a variant of Blu ray called Ultra HD Blu ray.