Yes the x700 plays Dual & Single layer DV MP4 with LPCM 7.1 via USB. Some titles just wont play ( about 2 or 3) but I watched more than 100 DV dual layer with lossless audio without any problems.
I read somewhere(in this thread i think) that it also works from a network but the slow 100mbps ethernet port caused playback issues.
here's what is supported with the x700:
MP4 DV (SL & DL) + lpcm 7.1 = play perfectly fine. (subtitles dont work)
M2TS / TS + atmos = HDR10 only but atmos is supported.
MKV + atmos - HDR10 but atmos not supported (because the core is separated)
MKV + DTS-X / DTSHD = HDR10 and all the DTS family is supported.
Burned ISO = Dolby vision + atmos supported. (latest Tsmuxer can now create compliant DV bluray structure)https://forum.doom9.org/showthread.php?t=176668&page=16
no cinavia... But i only use it for DV mp4 remux, I wish there was a device that can do it all......
I use my HTPC for HDR10 and the new Shield for everything that is streaming....Netflix in DV + Atmos.. amazon, movies anywhere, vudu. etc...
Sorry for my english...