>>65663>If you're so concerned about device compatibility why don't you use AAC?
I don't like free AAC encoders and Opus is supported by anything less than 15 years old. It's also better at the bitrates I'm using than AAC. Also *nix support for the codec is better. If you have mpv (and every set-top device does) you can decode Opus for free.
I would have normally used an AC3 audio track and not touched the audio at all. However, AppleTV users can't decode it for free with the player they use for Plex/Jellyfin (Infuse wants money if you attempt it). This BD also had uncompressed audio and no AC3 audio track for several episodes that included 2 commentary tracks. Opus was the best compromise and was supported by every device used in testing (AppleTV, Roku, various Xbox consoles running Kodi, all android devices and Windows/*nix PCs running mpv and the old CCCP).
Basically, anything that supports AAC supports Opus unless it's 20+ years old.