Which soundtrack(s) to keep when ripping Blu-Ray discs?
For my home theater, I rip my Blu-Ray discs and serve them through Plex. The client is an Nvidia Shield connected to the TV.
With Blu-Ray discs, I often have a choice of soundtracks in different formats: Dolby Digital, Dolby Digital +, Dolby TrueHD, Dolby Atmos, DTS, DTS-HD HR, DTS-HD MA, DTS:X, LPCM, ... and with different channel count (2.0, 5.1, 7.1, ...).
So far, when ripping a disk, I've taken whatever the highest quality soundtrack is, usually the DTS-HD MA or Dolby TrueHD soundtrack (each of which embeds a lower-resolution audio track if I'm not mistaken) in 5.1 or 7.1, and left the others out. I figured that this way, I'd save some space, and make the Plex UI less cluttered (no need to select the "right" soundtrack out of a giant list).
I figured that if I'm listening to the soundtrack in stereo for instance (TV with only 2 speakers, headphones, ...), then Plex will take care of down-mixing (e.g. 5.1 -> 2.0) and transcoding (e.g. DTS-HD MA -> Dolby Digital Pro Logic II). Or is it the client (Nvidia Shield) that takes care of the down-mixing? I'm a bit out of my depth here.
Anyway, is that a sound strategy (ha ha, what a great pun) - only keeping the highest resolution soundtrack, and let the hardware / software adapt? What's yours, and why? I figured that Plex can just down-mix and transcode as needed, but assuming a stereo playback for instance, is that going to be qualitatively as good as just grabbing the Dolby Digital 2.0 track from the disk, which could have had some rebalancing / further processing of the audio in order to maintain or improve the auditory experience?