On Thu, Feb 28, 2019 at 15:00:31 +0100, g.cemeli at woody-technologies.com wrote: > To summarize : > ffmpeg -i input.mxf growing.mkv > tail -c +1 -F growing.mkv ffmpeg -i - -c copy output.mkv > works like a charm. > You have to stop the 2nd instance to close the target file. Cool! Thanks for the feedback - happens for too seldomly. Moritz