Tools and other software (3 Viewers)

That seems likely. I tried the h264 ts cutter (found here) and it sort of works with HEVC/x265. The Preview has problems decoding the image, but if you know the area where to cut you can find a place. I had to change the settings (as a dialogbox suggested) to I-Frames as Cut-In-Points and All-Frames as Cut-Out-Points or else the...