I currently have Plex and Radarr. I only ever got 1080p content because that’s all my tv would do. Finally getting a nice new tv and would like to get a few 4K hdr movies to watch. Should I be looking for Bluray2160, Remux, or disk and what will Plex play?
AAC is such a stupid codec to use for anything other than 2.0 channel.
5.1 / 7.1 AAC doesn’t work over ARC. Over eARC it need to be decoded to LPCM and then sent out. It doesn’t work with SPDIF.
Both eARC and SPDIF will most likely get downmixed to 2ch.
448 or 640kbps AC3 is perfectly fine and has great compatibility, SPDIF, ARC, eARC. Pretty much all blurays and DVDs will also have a AC3 track.