1 00:00:00,080 --> 00:00:01,220 Blu ray disc. 2 00:00:01,460 --> 00:00:04,250 The current standard for removable disc media. 3 00:00:04,280 --> 00:00:10,130 The Blu ray disc gets its name from the color of the laser used to read from and write to the disc. 4 00:00:10,160 --> 00:00:17,000 Due to the high capacity storage of Blu ray discs, high definition HD content can easily be stored 5 00:00:17,000 --> 00:00:20,030 on Blu ray discs without a loss in quality. 6 00:00:20,390 --> 00:00:23,380 Diameter 120mm. 7 00:00:23,390 --> 00:00:25,760 Same as a CD and DVD. 8 00:00:26,360 --> 00:00:28,520 Type of laser used to write data. 9 00:00:28,520 --> 00:00:31,040 405 m Blu laser. 10 00:00:31,770 --> 00:00:38,580 Maximum capacity of a DVD, 27GB and 50GB, double layer Blu ray. 11 00:00:38,850 --> 00:00:45,990 The Blu ray disc, BD, often known simply as Blu ray, is a digital optical disc storage format. 12 00:00:46,020 --> 00:00:52,950 It is designed to supersede the DVD format and capable of storing several hours of high definition video. 13 00:00:52,980 --> 00:00:57,630 HDTV 720 and 1000 and ATP. 14 00:00:57,870 --> 00:01:04,080 The main application of Blu ray is as a medium for video material such as feature films and for the 15 00:01:04,080 --> 00:01:09,930 physical distribution of video games For the PlayStation three, PlayStation four, PlayStation five, 16 00:01:10,140 --> 00:01:12,930 Xbox One and Xbox Series X. 17 00:01:12,960 --> 00:01:19,260 The name Blu ray refers to the blue laser, which is actually a violet laser used to read the disc, 18 00:01:19,260 --> 00:01:24,870 which allows information to be stored at a greater density than is possible with the longer wavelength 19 00:01:24,870 --> 00:01:27,090 red laser used for DVDs. 20 00:01:27,300 --> 00:01:40,030 The polycarbonate disc is 120mm, 4.7in in diameter and 1.2mm 0.047in thick, the same size as DVDs 21 00:01:40,030 --> 00:01:41,110 and CDs. 22 00:01:41,230 --> 00:01:50,260 Conventional or pre bdxl Blu ray discs contain 25GB per layer with dual layer discs, 50GB being the 23 00:01:50,260 --> 00:01:53,320 industry standard for feature length video discs. 24 00:01:53,440 --> 00:01:54,880 Triple layer discs. 25 00:01:54,880 --> 00:01:58,030 100GB and quadruple layered discs. 26 00:01:58,030 --> 00:02:07,630 128GB are available for Bdxl Rewriter Drives High definition HD video may be stored on Blu ray discs 27 00:02:07,630 --> 00:02:18,280 with up to 1920 x 1080 pixel resolution at 24 progressive or 50/60 interlaced frames per second. 28 00:02:18,310 --> 00:02:31,200 DVD video discs were limited to a maximum resolution of 480 NTSC 720 x 480 pixels or 576 lines curved 29 00:02:31,210 --> 00:02:33,340 625/50. 30 00:02:33,340 --> 00:02:39,190 720 x 576 pixels commonly used with pal. 31 00:02:39,400 --> 00:02:45,580 Besides these hardware specifications, Blu ray is associated with a set of multimedia formats. 32 00:02:45,820 --> 00:02:51,970 The BD format was developed by the Blu ray Disc Association, a group representing makers of consumer 33 00:02:51,970 --> 00:02:55,420 electronics, computer hardware and motion pictures. 34 00:02:55,450 --> 00:03:02,140 Sony unveiled the first Blu ray disc prototypes in October 2000, and the first prototype player was 35 00:03:02,140 --> 00:03:05,200 released in Japan in April 2003. 36 00:03:05,410 --> 00:03:12,480 Afterward, it continued to be developed until its official worldwide release on June 20th, 2006, 37 00:03:12,490 --> 00:03:19,570 beginning the high definition optical disc format war where Blu ray disc competed with the HD DVD format. 38 00:03:19,720 --> 00:03:27,670 Toshiba, the main company supporting HD DVD, conceded in February 2008 and later released its own 39 00:03:27,670 --> 00:03:30,910 Blu ray disc player in late 2009. 40 00:03:31,210 --> 00:03:36,760 According to media research, high definition software sales in the United States were slower in the 41 00:03:36,760 --> 00:03:39,730 first two years than DVD software sales. 42 00:03:39,760 --> 00:03:46,670 Blu ray faces competition from video on demand, VOD and the continued sale of DVDs. 43 00:03:46,690 --> 00:03:55,630 In January 2016, 44% of US broadband households had a Blu ray player for playback of 4K content. 44 00:03:55,660 --> 00:04:00,640 The BDA introduced a variant of Blu ray called Ultra HD Blu ray.