Andrew/Terje: I went to the forum and clicked the TSMUXER code link and downloaded the zip file.  But most importantly, I referenced this email in issue #120 so it does not get lost.  This may provide the information needed for UHD setup.  We both have the Samsung Ultra HD bluray player for testing and playing purposes but I do not think GG will be working on this any time in the near future. 

Thanks for the good info!  gg/phyllis

On Fri, Feb 15, 2019 at 5:29 PM Andrew Randrianasulu <randrianasulu@gmail.com> wrote:
I found few forum posts about (non-opensource, windows) software, apparently able to fix tsmuxer output to be UHD-alike.
...
 The purpose of this software is to examine the output of TSMUXER v 2.6.12 and make changes that are required in order to make that structure readable and compatible with a standard UHD-BD standalone player.