The solution is simple. Own more than one device (I have ATV 4K, Zidoo X9S and Nvidia Shield). Zidoo can play almost anything in existence, but does have trouble with SMB3. NVidia Shield with KODI can play everything but 3D MVC. Both can handle full TrueHD + Atmos + DTS Master HD + X and Auro-3D passthrough as well (save perhaps the PCM "Red Tails" as KODI clearly doesn't passthrough PCM with meta data correctly; it's actually the only disc I have to play straight off the disc at the moment, although I'm not doing 4K rips as my projector is 2K/3D only. I rip 4K for the Atmos soundtracks and move them over to 3D and/or 2D as needed.