User:Locke Cole/Ultra HD Blu-ray
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| Media type | High-density optical disc |
|---|---|
| Encoding | H.265/MPEG-H Part 2 H.262/MPEG-2 Part 2 H.264/MPEG-4 AVC VC-1 |
| Capacity | 50 GB (dual layer) 66 GB (dual layer) 100 GB (triple layer)[1] |
| Block size | 64 KB ECC |
| Read mechanism | 405 nm diode laser |
| Developed by | Blu-ray Disc Association[2] |
| Dimensions | 120 mm (4.7 in) diameter 1.2 mm thickness[3] |
| Usage | 4K UHD video (2160p) High-definition video (1080p) |
| Extended from | Blu-ray Disc |
| Optical discs |
|---|
 |
Ultra HD Blu-ray (or UHD BD) is an upcoming optical disc format that is extended from Blu-ray to allow for additional storage capacity, faster disk read speeds, as well as support for 4K resolution (Ultra-high-definition television) content.
History
[edit]The format was first announced on September 5, 2014 by the Blu-ray Disc Association[4]. The format was finalized in the summer of 2015.
Technical
[edit]| Layers | Dual | Triple | |
|---|---|---|---|
| Capacity | 50 GB | 66 GB | 100 GB |
| Minimum Mark Length | 0.149 μm | 0.012 μm | |
| Track Pitch | 0.32 μm | ||
| Modulation | 17PP | ||
| ECC | LDC with BIS | ||
| Sector/Block Size | 2 KB / 64 KB | ||
| Track Path | Opposite track path | ||
| Read speed | 72 Mbps (low transfer option) 92 Mbps (default) |
92 Mbps (low transfer rate option) 123 Mbps (default) 144 Mbps (high transfer rate option) | |
References
[edit]- ^ "White Paper Blu-ray Disc Format General 4th Edition (August, 2015)". Archived from the original (PDF) on February 5, 2016. Retrieved February 5, 2016.
- ^ Blu-ray FAQ. Blu-ray.com. Retrieved on December 22, 2010.
- ^ "Blu-ray FAQ". Blu-ray.com. Retrieved February 17, 2014.
- ^ "4K Blu-ray discs arriving in 2015 to fight streaming media". CNET. September 5, 2014. Retrieved October 18, 2014.