hi Assumed that i have a 800mb video file(avi,mkv,...) with 25 FPS(Frame Per Second) and 90 minutes duration i want to know 1 second contains how many size and to do that: 90m X 60 = 5400s 800mb X 1024 = 819,200 kb So: 819,200 / 5400 = 151.703Kb it means 1 second require about 152 kb . First Thing i...