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2. Blu-ray Disc recordable - Wikipedia

   en.wikipedia.org/wiki/Blu-ray_Disc_recordable

   The minimum speed at which a Blu-ray Disc can be written is 36 megabits (4.5 megabytes) per second. [4] As of 2024, one of the primary pioneers of the Blu-ray disc, Sony, is winding down production of recordable Blu-ray discs in its plant in Tagajo, Japan.

3. Optical disc packaging - Wikipedia

   en.wikipedia.org/wiki/Optical_disc_packaging

   Beginning in 2007, prerecorded Blu-ray and HD DVD titles ship in packages similar to but slightly smaller (18.5 mm shorter and 1 mm thinner: 135 mm × 171.5 mm × 13 mm) [31] than a standard DVD keep case, generally with the format logo prominently displayed in a horizontal stripe across the top of the case (red for HD DVD; and PlayStation 3 ...

4. Blu-ray - Wikipedia

   en.wikipedia.org/wiki/Blu-Ray

   Pre-recorded Blu-ray Disc titles usually ship in packages similar to, but slightly smaller (18.5 mm shorter and 2 mm thinner: 135 mm × 171.5 mm × 13 mm [138]) and more rounded than, a standard DVD keep case, generally with the format prominently displayed in a horizontal stripe across the top of the case (translucent blue for Blu-ray video ...

5. Optical disc drive - Wikipedia

   en.wikipedia.org/wiki/Optical_disc_drive

   DVD lens supports a different focus for CD or DVD media with same laser. With the newer Blu-ray Disc drives, the laser only has to penetrate 0.1 mm of material. Thus the optical assembly would normally have to have an even greater focus range. In practice, the Blu-ray optical system is separate from the DVD/CD system.

6. High-definition optical disc format war - Wikipedia

   en.wikipedia.org/wiki/High-definition_optical...

   In a top-level meeting in July, Microsoft's Bill Gates argued that the Blu-ray standard had to change to "work more smoothly with personal computers". The Blu-ray Disc's representatives defended the technology. [20] On August 22, 2005, the Blu-ray Disc Association and DVD Forum announced that the negotiations to unify their standards had failed ...

7. M-DISC - Wikipedia

   en.wikipedia.org/wiki/M-DISC

   M-DISC's design is intended to provide archival media longevity. [3] [4] M-Disc claims that properly stored M-DISC DVD recordings will last up to 1000 years. [5]The M-DISC DVD looks like a standard disc, except it is almost transparent with later DVD and BD-R M-Disks having standard and inkjet printable labels.

8. Ultra HD Blu-ray - Wikipedia

   en.wikipedia.org/wiki/Ultra_HD_Blu-ray

   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 ]

9. Content Scramble System - Wikipedia

   en.wikipedia.org/wiki/Content_Scramble_System

   It has been superseded by newer DRM schemes such as Content Protection for Recordable Media (CPRM), or by Advanced Encryption Standard (AES) in the Advanced Access Content System (AACS) DRM scheme used by HD DVD and Blu-ray Disc, which have 56-bit and 128-bit key sizes, respectively, providing a much higher level of security than the less ...