Almost 15 years ago I created a bunch of iMovies of old family video. I can not upgrade my movies to the latest version of iMovie. I did create *.mov files that can be played with quicktime 7. I downloaded it to my 2012 mbp running sierra. The problem is I need the quicktime 7 pro version to convert the files into something I play them on now. I have been looking this AM on the net where I can get it with no luck. My fall back will be import the clips into latest move and re-create the movies. Any help would be appreciated.