I tried using this app to convert MPEG-4 files to .ogg video format. The .ogg videos were resized inappropriately. The original videos were not standard 4:3 or 16:9 format, but this app seems to think the output should be one of these. There are no preference settings to choose output to the original size. There are also no options to choose how much compression is applied. While this app might work for very standard applications, using standard output ratios and "average" quality settings, the lack of controls does not make it useful for projects that require more refinement. I switched to the Miro video converter, which worked fine.