Thank you, Moritz, this did the job! I thought quoting ("...") would make escaping unnecessary, didn't think the ":" had such a high priority. Gerhard -- View this message in context: http://ffmpeg-users.933282.n4.nabble.com/vidstabdetect-tp4664612p4664628.html Sent from the FFmpeg-users mailing list archive at Nabble.com.