Blu-ray Disc is a high-density optical disc format similar to DVD. Blu-ray is the type of disc used for Play Station 3 games and for playing high-definition (HD) movies. In the past, there were other standards for such movies, such as the HD DVD format. Blu-ray won what is called the format war. A dual-layer Blu-ray disc can store up to 50GB (gigabytes) of data. This is over five times the capacity of a DVD, and over 70 times more than a CD or VCD. The disc was developed by the Blu-ray Disc Association (BDA), a group of consumer electronics, personal computer and media manufacturers, and released in 2006. The format was developed for recording, rewriting and playback of high-definition video (HD), as well as storing large amounts of data. Older optical disc technologies such as DVD, DVD±R, DVD±RW, and DVD-RAM used a red laser to read and write data. The new format used a blue-violet laser instead. 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 720p and 1080p). 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 3, PlayStation 4, PlayStation 5, Xbox One, and Xbox Series X.

Dency Varghese

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