The avi, mkv, xvid and many others are all played even very large files up to 40GB. The audio formats DTS HD, Dolby and other work very well. Subtitles management is simple, we can even modify some related settings.
The Miracast function is not a criterion for purchase. It is unusable, the connection is very long, it oar lot, one is discouraged at the thought of using ...
The remote control is simple, complete, ergonomic but not backlit.
I had the "old" model, I had some problems: it gets very hot (permanently but zero noise), it will lit / died out more. I contacted the sav who offered me an exchange. With the new, I have the same problems ...
I recommend connecting the WD TV Live in Ethernet for easy navigation as well as bandwidth when reading large files.