Aug 2017

This command only changes the container, it does not transcode the video/audio.

  ffmpeg -i in.mov -vcodec copy -acodec copy out.mp4

To specify bit rates:

  ffmpeg -i input.mov -b:v 1M -b:a 192k output.mp4

This example converts a .MOV input file, to a h264 output file at 300Mbs.

  ffmpeg.exe -i sourcefile.mov -vcodec h264 -b:v 300M -b:a 240K outputfile.mp4

It's important to get the files correct, initially I specified .mpg on the output and had pages and pages of errors, when I changed the output to .mp4 it worked perfectly with 0 errros.