Yep.... In the case of this particular Blu-ray disc, you can use MakeMKV GUI to back-up the disc to an .mkv file (I recommend deselecting the stereo PCM and DTS-HD MA audio streams) keeping the video and multi-channel pcm audio stream.
Then you can use (Mosu's) MKVToolNix to de-select the video stream and create an 'audio only' (multi-channel pcm).mka file, complete with track selection. From there, there are other tools you can use if you want to re-encode the multi-channel audio stream to a multi-channel FLAC audio stream.
All that being said.... Does the nVidia Shield support playback of .mka contained audio files. And if so, does it also support their track navigation/selection?
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