Ultra HD Blu-ray disc specification and logo are official

The new format will support a 4K resolution of 3840 x 2160, as well as high dynamic range (HDR), higher frame rates and object-based immersive sound, such as Dolby Atmos and DTS:X.

HDR pictures can be delivered in one of two ways: either using the BDA-developed “BD HDR” section of the new specification, or via compatible HDR formats such as Dolby Vision.

It’s also been announced that the format will be backwards compatible, so regular Blu-ray discs will work in Ultra HD Blu-ray players.

“For years, Blu-ray Disc has set the standard for high definition picture and audio quality in the home. Ultra HD Blu-ray will do the same for UHD home entertainment," said Victor Matsuda, chair, BDA promotions committee.

Max Langridge

Max is a staff writer for What Hi-Fi?'s sister site, TechRadar, in Australia. But being the wonderful English guy he is, he helps out with content across a number of Future sites, including What Hi-Fi?. It wouldn't be his first exposure to the world of all things hi-fi and home cinema, as his first role in technology journalism was with What Hi-Fi? in the UK. Clearly he pined to return after making the move to Australia and the team have welcomed him back with arms wide open.