Clarify what this program is.

[rexendevar]

I downloaded this with the intention of cropping a video file (as in taking off a bit of the top and a bit of the bottom), and I'm very disappointed that I can't do that in this program. I think you should clarify in the readme file what this program is and does and doesn't do

[exciar]

cutting as in length not cropping which you are pertaining to, YOU ARE WRONG