Last week, the Blu-ray Disc Association announced the Ultra HD Blu-ray logo and the latest specifications for Ultra HD Blu-ray discs and players were also announced. An important part of the specification is Digital Bridge, but what exactly is this and how does it work?
Ultra HD Blu-ray
Ultra HD Blu-ray is the successor to the Blu-ray discs that we currently find in stores. The most important innovation is support for 4K Ultra HD material and material with HDR support. These discs therefore contain movies in a higher resolution and, when supported, support for high dynamic range playback. Read more about Ultra HD Blu-ray discs and players .
This version of Blu-ray discs can be equipped with a ‘Digital Bridge’ function by content providers. This allows buyers of the disc to play the film (or other content) on a NAS, a media server, a hard drive, a smartphone, a laptop or a tablet. So you get a digital copy of the movie so you can watch the movie anywhere, anytime.
Digital Bridge is a DRM standard developed by Sony and makes it possible to make a complete digital copy of the Blu-ray disc for use on all kinds of devices. So you basically have to use the Blu-ray disc more when you have the digital copy.
Most likely future this version of Blu-ray disc players will be able to ‘rip’ the content of the disc and export it to, for example, a NAS or laptop. Using the HEVC codec, an optimal digital copy can be made for each device. However, there is communication with a server to be able to export and play a copy on another device. Each copy is given an ID, so it can be checked whether a film is distributed several times. The devices on which the copy is to be played must also be registered and support Digital Bridge.