I had asked in this topic and found this was not possible. https://forum.redfox.bz/threads/clonebd-how-do-i-do-this.76429/ It seems it would be such a simple thing to implement. And that is the ability to take a UHD folder and output everything as a single M2TS file. You can output as a single MKV and MP4 file. It just seems crazy to not support M2TS also given the fact that DLNA standards do not allow hidef audio to work in those containers but do with M2TS. Or at least that is the case with Sony and Oppo players. What I would like is just to non transcode remux a UHD removing foreign audio tracks and such, into a single M2TS file. I doubt I would be alone in that wish too.