Blu-ray ( Blu-ray Disc or BD) is a digital optical disc data storage format designed to supersede the DVD format. It was invented and developed in 2005 and released worldwide on June 20, 2006, 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. The name refers to the blue laser (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. Instead of the pits and lands found on prepressed/prerecorded/replicated discs, BD-R and RE discs contain grooves which contain a wobble frequency that is used to locate the position of the reading or writing laser on the disc. [29] BD-R has an Optimum Power Calibrations (OPC) / Test Zone, which is used to calibrate (finely adjust) the power of the writing laser before and during writing, and it also has a Drive Calibration Zone (DCZ) at the outer edge of the disc, for optional high speed calibration. The calibration is necessary to allow for slight manufacturing defects, greatly reducing or completely eliminating rejected discs and drives, reducing costs and eliminating potential waste. The information below describes the different types of recording layers that may be used on BD-R and BD-RE discs. a b "Format Specification - R2". www.blu-raydisc.info. Archived from the original on 26 August 2010 . Retrieved 24 February 2017. Lawler, Richard (July 23, 2014). "PS4 will add Blu-ray 3D support next week". Engadget. AOL Inc. Archived from the original on July 24, 2014 . Retrieved July 24, 2014.

Blu-ray FAQ". Blu-ray.com. Archived from the original on February 14, 2014 . Retrieved February 17, 2014.

Speed 4K Video

or any decade for that matter), a film that is infinitely re-watchable, and one that is simply great Yam, Marcus (January 10, 2007). "Three HD Layers Today, Ten Tomorrow". DailyTech. Archived from the original on May 15, 2007 . Retrieved April 24, 2007. are ample opportunities for the image to shine, albeit even as it's often confined to a single location. The sequence that begins around the 27-minute

Whitten, Sarah (November 8, 2019). "The death of the DVD: Why sales dropped more than 86% in 13 years". CNBC. Archived from the original on March 29, 2020 . Retrieved April 21, 2020. a b "Solar Applied Materials Technology Corporation". Archived from the original on 15 November 2016 . Retrieved 21 April 2020. Archived copy" (PDF). docs-europe.electrocomponents.com. Archived from the original (PDF) on 13 April 2020 . Retrieved 22 May 2022. {{ cite web}}: CS1 maint: archived copy as title ( link) a b c "White paper Blu-ray Disc Format" (PDF). Blu-ray Disc Founders. August 2004. Archived (PDF) from the original on February 24, 2014 . Retrieved August 11, 2020.Before we get too deep into disc drives and software, let's look at the big picture. What tools are we using to play, rip, or write Blu-rays and DVDs? What should you look for in these tools, and why are they important?