tested via USB:
Egreat S100 - Video freezes in a frame, subtitle shows ok, audio heard (HDMI to TV)
Egreat S800 - Video freezes in a frame, subtitle shows ok, no audio heard (HDMI to TV)
PCH C200 - Video ok, Audio ok, subtitle shows ok, a little behind the audio track
HiMedia 600B - Video ok, Audio ok, no subtitle shows, subtitle menu detects English subtitle
Measy e8HD - Video ok, Audio ok, no subtitle shows, subtitle menu detects English subtitle
VLC via PC now plays, video ok, audio ok, subtitles in full sync. (fixed with latest VLC download )