"Pure Audio Blu-ray combines the Blu-ray format's vast storage capacity and bandwidth necessary for high resolution sound (up to 192 kHz/24Bit)
in stereo, surround and immersive audio presentation with the easy and straight-forward handling of a CD – on any Blu-ray Player"
Navigation
The Pure Audio Blu-ray can be operated either with or without a screen: by on-screen menu navigation or by screen-less navigation.
For users preferring navigation on a screen, the Pure Audio Blu-ray provides menus just as on a video Blu-ray.
These menu screens give information about the tracks, track lengths, audio streams or additional information e.g. production credits.
Audio Streams
The Pure Audio Blu-ray can hold various streams for stereo, surround and immersive audio.
The audio streams are allocated to the color buttons on the remote control, also allowing for seamless switching between them.
mShuttle
Additionally to the high-definition content, extra content can be made available for mobile use through mShuttle
This includes booklets, covers, as well as audio and video content for mobile devices like tablet computer and smartphones.
Video Content
The navigational structure of the Pure Audio main menu only serves as entry point for the entire disc to provide screenless navigation and playback.
However the full spectrum of Blu-ray format features is still available and can be presented in additional menu structures comparable to regular feature film Blu-ray Discs.
These menus are accessible via the Bonus Video Button in the graphical user interface and allow for additional bonus content and mixed audio/video releases.
AES 21id
AES-21id-2011 (r2017): AES Information Document for audio-file transfer and exchange - Screen-less navigation for high-resolution audio on Blu-ray Disc™:
Abstract from the AES website:
High-resolution audio, presented as uncompressed LPCM, has been waiting for a suitable transport format for some time. The Blu-ray Disc (BD) format offers such a transport and supports the necessary linear and lossless codecs as part of its basic specification. While many BD players can be found in home theatre and games environments, there are some issues that need to be addressed before they can be introduced into a hi-fi environment that does not have a screen to present visual menus for audio stream setup and track selection. This recommended method specifies a structure for authoring a BD ROM to enable playback in screen-less consumer systems, and to provide simple track selection from the remote control.
