Vob files does not appear in menu and mkv files dont play

hey my wdtv live streaming media player does not play mkv wirelessly even tho i have not tried via usb and also vob files do not appear in the menu when i try wirelessly but does work when i try via usb.

Chances are you’re using “Media Server” function as opposed to “Network Shares?”   If so, the issue is with your media server not supporting those file types.