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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]
A hard disk drive (HDD), hard disk, ... (particularly write speeds and random access 4k speeds). ... to transfer data between the disk and the computer without the ...
DVD included for comparison Mandatory codecs must be supported by the player. Each disc must use one or more of the mandatory codecs. Ultra HD Blu-ray Blu-ray Disc HD DVD CBHD AVCHD AVCREC DVD; Laser wavelength: 405 nm (blue-violet laser) 405 or 650 nm 650 nm (red laser) Numerical aperture: 0.85 0.65 0.85 or 0.6 0.6 Storage capacity (single side)
The Blu-ray Disc Association has confirmed the name of its 4K format (Ultra HD Blu-ray) and many of its capabilities, while the Secure Content Storage Association has its own demo for Ultra HD ...
With both types of mechanisms, if a CD or DVD is left in the drive after the computer is turned off, the disc cannot be ejected using the normal eject mechanism of the drive. However, tray-loading drives account for this situation by providing a small hole where one can insert a paperclip to manually open the drive tray to retrieve the disc. [36]
Blu-ray Disc : BD-R & BD-RE, Blu-ray 3D, Mini Blu-ray Disc, 4K Blu-ray (Ultra HD Blu-ray) M-DISC; ... HD DVD Writer PC drive Notebook drives. Name Make Type