For example, I wanna change a footage from 25fps to 20fps. Ok, there is a way for that purpose but the result is every first 20 frames on and the last 5 frames off per second, so 20fps. BUT: is there a software which can remove for example every 5th frame, so the result to be again 20fps??? Interesting question, huh? I hope you understand what I mean. Any ideas???