The Blu-ray Disc Association today announced it has finalized what could be the last major disc-based movie format: Ultra HD Blu-ray.

Source: Ultra HD Blu-ray specification now complete, logo unveiled – CNET

The new specification isn’t just about boosting the resolution to display “up-to 3840 x 2160”. There are other enhancements to both image and sound within the standard.

“enables delivery of a significantly expanded colour range and allows for the delivery of high dynamic range (HDR) and high frame rate content”

Sound is enhanced with the use of next-generation immersive, object-based sound formats such as DTS:X and Dolby Atmos, as part of the specification.