Ultra HD Blu-ray spec confirmed: 4K at high frame rates, 10-bit colour | Ars Technica
Ghost in the Shell 4K HDR/2K Blu-ray
What is 4K Blu-ray? - CNET
Everything you need to watch HDR movies and shows
Amazon.com: Blade Runner: The Final Cut (4K Ultra HD) [Blu-ray] : Ridley Scott, Harrison Ford, Rutger Hauer, Sean Young, Edward James Olmos, M. Emmet Walsh, Daryl Hannah, William Sanderson, Brion James, Joe