Hello,
I have the samre problem. I have a D-series (UE40D6570) and an E-series (UE40ES6540) TV.
The 3D SBS and non-3D HD mkv files I downloaded play fine on the D-series TV but teh E-series TV says that the format is not supported.
I digged into it more.
The mkv files which play well on the D-series TV have H.264 video, 2 x AC3 audio, 2 x subtitle tracks and tag as per MkvToMp4 0.221a progran created by Oreons (
www.mkvtomp4.ru). This mkttomp4 program does not reencode the video part, it remains the original h.264 but it converts teh audio tracks to AAC from AC3.
If I convert the mkv files to m4v with this tool and I remover the subtitles and the tag then E-series TV can play the files but I cannot do forwarding, rewindin, seeking on the TV.
On the D-series TV I can do forwarding, rewinding, seeking in case of mkv and incase of m4v format too.
I tried MKV Convert Studio as qeel. It can convert the mkv to avi by copying the video track and converting the first audio track to mp3.
In that case the E-series TV can play it but no forwarding, rewinding, seeking is working. But at least Pause is working in this case.
Of course the Allshare app on the D-series and the E-series TV are differnetm they have differnet user interface. My opinion is that the older Allshare on the D-series was better.
I will investigate more and try to figure out how to get the seeking working in case of E-series too.