Image with a black frame

[SergeC]

Hello. It seems to be an aspect ratio problem. See @daniel47 and @brian answers to this recent topic:

Video does not fill screen

I have a Canon SD fs2000 camcorder at which I exported all the scenes I wanted for editing. The editing is done. When I originally viewed the video clips before exportation, the video filled the screen in shotcut but when I exported the clips I wanted to work with…the video on the left and right is short of the entire screen. The top and the bottom fill the screen though. I exported the resolution at 640x360 with an aspect ratio at 16:9 (as recommended). I tested exportation when all done …