Hi Irwell,
i got 3D Full HD working on SmartShare in every container like MP4, MKV and MTS but not
over DLNA, i read in the specs that by design 4k is not available over DLNA. I have external HDD
connected to USB 3.0 port.
Anyway i got it working after many try between compatibility and image quality.
I can say that SmartShare is unable to play SBS 3840 x 1080 becouse
the WIDTH (3840) is initial step to determinate if the resolution is 4K. And if it is
2160 height is expetced. I really don't know why. I tried Many othere video with
mixed resolution more close to 4k like 3840 x 2000 and fail to play.
So to get Full HD SBS i upscaled 3840x1080 to 3840x2160 in SBS to get 4K full resolution,
and with passive 3D i got full resolution per eye.
I success in some case to put two videos OU (Top Bottom) instead SBS
to get 1920x2160 instead 3840x1080 but nevere tried over DLNA.
Hope to be in help,
Stefano