Helpful one liners for creating various video formats from other sources (namely mov files).
Found this thanks to David Walsh, and archiving it here for me (and whoever else).
ffmpeg -i trailer.mov -c:v libvpx -crf 10 -b:v 1M -c:a libvorbis trailer.webm
This one courtesy of Peter Coles.
ffmpeg -i my-video.mov -vcodec h264 -acodec mp2 my-video.mp4