I have tried what you suggest, but the result is the same. I have set Video > Compressor to H264 and Video Quality/Bitrate to High Quality/Larger Filesize but the result is choppy. I tried to set Video > Compressor to H265 but then i get the message "x265enc3.exe has stopped working". When i play the video in your software without recording it plays very well so the transfer through Firewire is ok.. What to do next?