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Originally, BD-ROMs stored video up to 1920 × 1080 pixel resolution at up to 60 (59.94) fields per second. Currently, with UHD BD-ROM, videos can be stored at a maximum of 3840 × 2160 pixel resolution at up to 60 (59.94) frames per second, progressively scanned.
Initial Blu-ray Disc titles often used MPEG-2 video, which requires the highest average bitrate and thus the most space, to match the picture quality of the other two video codecs. As of July 2008 over 70% of Blu-ray Disc titles have been authored with the newer compression standards: AVC and VC-1. [ 6 ]
Ultra HD Blu-ray (4K Ultra HD, UHD-BD, or 4K Blu-ray) [2] [3] is a digital optical disc data storage format that is an enhanced variant of Blu-ray. [4] Ultra HD Blu-ray supports 4K UHD (3840 × 2160 pixel resolution) video at frame rates up to 60 progressive frames per second, [ 4 ] encoded using High-Efficiency Video Coding . [ 4 ]
The format war's resolution in favour of Blu-ray was primarily decided by two factors: shifting business alliances, including decisions by major film studios and retail distributors, [37] and Sony's decision to include a Blu-ray player in the PlayStation 3 video game console. [38] [39]
Since BD-RE 5.0/BD-R 4.0, a read speed of 4× is mandatory for UHD support. [8] Note: If write verification is enabled, as it may be by default on some burning software, the write will take longer to complete. Erasing a BD-RE is not necessary since existing data can be directly overwritten.
Video CD (abbreviated as VCD, and also known as Compact Disc Digital Video) is a home video format and the first format for distributing films on standard 120 mm (4.7 in) optical discs. The format was widely adopted in Southeast Asia , South Asia , East Asia , Central Asia and West Asia , superseding the VHS and Betamax systems in the regions ...
In the history of optical storage media there have been and there are different optical disc formats with different data writing/reading speeds.. Original CD-ROM drives could read data at about 150 kB/s, 1× constant angular velocity (CAV), [1] the same speed of compact disc players without buffering.
The "SD on BD" release of Samurai Pizza Cats, for example, contains all 52 episodes on a single disc rather than the 8 DVDs used for the previous release. [3] Despite being the same resolution, SD video presented on Blu-ray has the potential to look better than the DVD equivalent due to the availability of superior video codecs and higher bitrates.