Hi all, My plan is to put a H265 signal on the WB of QO-100. I know there are small black-boxes, HDMI in and UTP out who can do the job. But i have already all the hardware in my computer, so why not use it. H264 is not the problem, can put a good picture on the satellite. My system: Hardware Intel I7 cpu with a GTX1650 video card, Adalm-Pluto Software Windows-10, OBS studio, OBS-VirualCamera, FFMpeg and VLC All software and drivers are updated to theire latest versions. This is my bat file: ffmpeg -f dshow -rtbufsize 1M -i video="OBS-Camera" -thread_queue_size 512 -f dshow -i audio="OBS-Audio" -vcodec hevc_nvenc -r 10 -s 1280x720 -pix_fmt yuv420p -preset slow -rc cbr -rc-lookahead 5 -b:v 90k -acodec aac -aac_coder twoloop -ar 48000 -ac 1 -b:a 24k -f mpegts -muxrate 160k -streamid 0:256 -streamid 1:257 -max_delay 3000000 -pcr_period 40 -pat_period 0.4 "udp://238.0.0.1:8282?pkt_size=1316" With the GTX 1650 nvidia encoder it should be possible to make H265. Can start a movie in OBS via VirtualCam so i can watch it in ffplay and VLC. It is also possible to send it via my pluto to QO-100 Only in the following modes "-vcodec libx264, -vcodec libx265 and -vcodec H264_nvenc" Audio en Video are all fine. But now "-vcodec hevc_nvenc" can play it in ffplay, nice audio and video, but can't play it in VLC and send it to my pluto. In VLC only the first 1 or 2 seconds there is video than the pictures freezes, but the audio continues (with good quality) On my Pluto the same effect as with VLC. Does someone a idea to solve this nasty problem. After more than two weeks of testing and trying, now running out of options. Thanks in advance, Bert PA3AOD