I am starting to record gameplay using MSI Afterburner. I enjoy playing indie games quite a lot, but when I play back the video the recorded gameplay is in the top left of the screen and the rest of the video is black. I figure that the reason for this is the low resolution of the game. The playback is merely playing the recorded footage at the resolution it was recorded at. That's all well and good, but it doesn't solve the problem.
Is there any way I can edit out the black space and play the footage in fullscreen? I would like to upload videos to YouTube without forcing people to squint.