Ultra HD Blu-ray

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Ultra HD Blu-ray
Ultra HD Blu-ray (logo).svg
Media type High-density optical disc
Encoding H.265/MPEG-H Part 2 (HEVC)
Capacity 50 GB (dual-layer,[1] 82 Mbit/s)
66 GB (dual-layer,[1] 108 Mbit/s)
100 GB (triple-layer,[1] 128 Mbit/s)
Block size 2 KB sector, 64 KB block size[1]
Read mechanism Diode laser
Developed by Blu-ray Disc Association
Dimensions 120 mm (4.7 in) diameter
Usage Ultra-high-definition video

Ultra HD Blu-ray is a digital optical disc data storage format that supersedes Blu-ray.[2] Ultra HD Blu-ray discs are incompatible with existing Blu-ray players.[1] Ultra HD Blu-ray supports 4K UHD (3840 × 2160 resolution) video at frame rates up to 60 frames per second,[2] encoded using High Efficiency Video Coding.[2] The discs support both high dynamic range by increasing the color depth to 10-bit per color and a greater color gamut than supported by conventional Blu-ray video by using the Rec. 2020 color space.


The specification allows for three disc capacities, each with their own data rate: 50 GB with 82 Mbit/s, 66 GB with 108 Mbit/s, and 100 GB with 128 Mbit/s.[2] Ultra HD Blu-ray technology was licensed in mid 2015, and players had an expected release date of Christmas 2015.[2] Ultra HD Blu-ray uses a new revision of AACS DRM, AACS 2.

On May 12, 2015, the Blu-ray Disc Association revealed completed specifications and the official Ultra HD Blu-ray logo.[3] Unlike conventional DVDs and Blu-rays, the new 4K format does not have region coding.[4]

On March 1, 2016, the BDA released Ultra HD Blu-ray with mandatory support for HDR10 Media Profile video and optional support for Dolby Vision.[5][6]

As of January 23, 2018, the BDA spec v3.2 also includes optional support for HDR10+ and Philips/Technicolor’s SL-HDR2.[7]

Initial titles[edit]

The first Ultra HD 4K Blu-ray Discs were officially released from four studios on March 1, 2016,[8] these were Sony (six titles: The Amazing Spider-Man 2, Salt, Hancock, Chappie, Pineapple Express, and The Smurfs 2),[9] Lionsgate (four titles: Sicario, The Last Witch Hunter, The Expendables 3, and Ender's Game),[10] Warner Bros. (four titles: Mad Max: Fury Road, The Lego Movie, Pan, and San Andreas),[11] and 20th Century Fox (10 titles: The Martian, Kingsman: The Secret Service, Exodus: Gods and Kings, X-Men: Days of Future Past, Maze Runner: The Scorch Trials, The Maze Runner, Wild, Agent 47, Fantastic Four, and Life of Pi).[12][excessive detail?]

Star Trek and Star Trek Into Darkness are the first Ultra HD Blu-rays from Paramount Home Media Distribution, which were released on June 14, 2016.[13] Sammi Cheng Touch Mi 2 World Tour was officially the world's first live concert released in UHD Blu-ray format on 22 May 2017 by Warner Music Group. The concert was the first live show production recorded in 4K format in region, and the field production and pre-production work was begun in November, 2016,[14] the first Ultra HD Blu-ray for Walt Disney Studios Home Entertainment is Guardians of the Galaxy Vol. 2, which was released in the United States on August 22, 2017.[15][16]


  1. ^ a b c d e "White Paper: Blu-ray Disc™ Format" (PDF). www.blu-raydisc.com (4th ed.). 2015. Retrieved 2016-12-28. 
  2. ^ a b c d e "4K Blu-ray discs arriving in 2015 to fight streaming media". CNET. September 5, 2014. Retrieved October 18, 2014. 
  3. ^ "Blu-ray Disc Association Completes Ultra HD Blu-ray™ Specification and Releases New Logo - Business Wire". BusinessWire.com. May 12, 2015. Retrieved October 28, 2015. 
  4. ^ Michael S. Palmer (2015-10-07). "Everything We Know About Ultra HD Blu-ray". High-Def Digest. Retrieved 2016-12-26. 
  5. ^ Caleb Denison (2016-01-28). "Ultra HD Blu-ray arrives March 2016; here's everything we know". Digital Trends. Retrieved 2016-07-27. 
  6. ^ Michael S. Palmer (2016-02-10). "Hands On First Look: Samsung UBD-K8500 Ultra HD Blu-ray Player". High-Def Digest. Retrieved 2016-07-27. 
  7. ^ "Blu-ray Disc Association – Update – 1/12/2018". From Vinyl to Plastic. 2018-01-12. Retrieved 2018-01-12. 
  8. ^ "Upcoming Fox 4K Blu-ray Titles". Blu-ray.com. Retrieved 12 January 2016. 
  9. ^ Thomas K. Arnold (2016-01-06). "Dolby Collaborates on 4K Ultra HD Movies from Sony, MGM, Uni". Variety. Retrieved 2016-12-26. 
  10. ^ Steven Cohen (2016-01-13). "Lionsgate Reveals Ultra HD Blu-ray Launch Titles, Release Date Set for March 1". High-Def Digest. Retrieved 2016-12-26. 
  12. ^ "4k Ultra HD Blu-ray Titles from Fox Show Up on Amazon". Hd-report.com. Retrieved 2016-12-26. 
  13. ^ http://www.blu-ray.com/news/?id=18800
  14. ^ "Sammi Cheng Touch Mi 2 world tour 4K Blu-ray". bluray.com. Retrieved 2017-06-28. 
  15. ^ Landy, Tom (July 4, 2017). "James Gunn's 'Guardians of the Galaxy Vol. 2' Blu-ray and 4K Ultra HD Blu-ray Coming in August". High-Def Digest. Archived from the original on July 4, 2017. Retrieved July 4, 2017. 
  16. ^ Katzmeier, David (June 9, 2017). "'Guardians of the Galaxy 2' could be Disney's first 4K Blu-ray". CNET. Archived from the original on July 4, 2017. Retrieved July 4, 2017.