2018-04-09 19:38 GMT+02:00, Matt Kitcat <matt at elmtreecottages.co.uk>: > ffmpeg -r 23.976 -i > C:\Users\Matt\Desktop\Newfolder\104_0020gn_01_X1_0%3d.tif > -c:v dnxhd -profile:v 3 -s 1920x1080 > -r 23.976 I suspect this is not a valid frame-rate for any real-world video, -r 24000/1001 is. Carl Eugen