Ultra HD Blu-ray Disc

Ultra HD Blu-ray logo transparent PNGUltra HD Blu-ray Disc, or commonly known as 4k Blu-ray, is the Blu-ray Association’s name for discs that play 3840 x 2160 (2160p) resolution video, frame rates up to 60fps (frames-per-second), High Dynamic Range (HDR) using Dolby Vision or HDR10/HDR10+ specifications, as well as advanced audio formats such as Dolby Atmos and DTS:X (although these formats can also be provided on 1080p Blu-rays).

According to the Blu-ray Disc Association, “Ultra HD Blu-ray Disc sets a new standard for Ultra High Definition picture and audio quality in the home. With four times the resolution of 1080p Full HD, High Dynamic Range for striking contrast, more intense color and uncompressed sound, Ultra HD Blu-ray is the ultimate movie watching experience.”

Also see our list of Ultra HD Blu-ray Discs, release dates for upcoming 4k Blu-ray Discs, and the latest Ultra HD Blu-ray news.

Ultra HD Blu-ray Specifications

First Release

February 14, 2016

Media Type

High-density optical disc


H.265/MPEG-H Part 2 (HEVC)


50 GB (dual-layer,[1] 82 Mbit/s)
66 GB (dual-layer,[1] 108 Mbit/s)
100 GB (triple-layer,[1] 128 Mbit/s)


120 mm (4.7 in) diameter

Developed By

Blu-ray Disc Association

List of 4k Ultra HD Blu-ray Disc Titles