When I record a lecture/talk using zoom, the recorded videos have the mp4 format. Sometimes, I would like to edit the saved videos a little bit before sharing them with others. For example, I might say something incorrect or I might cough in my talk, which I hope I can remove from the recorded videos.
However, I found if I edit the file in iMovie and export it as an mp4 file, the size of the file would be very large. So I used QuickTime Player did some trimming for my video. But when I saved the trimmed video, the format became .mov, though the file size is…
