On Fri, 15 Nov 2013 17:15:01 +0800, littlebat <dashing.meng at gmail.com> wrote: >The most efficient way is resize resolution lower, e.g., 640x360, and >lower audio quality, e.g., stero, 128kb/s I'll give it a try. What about converting audio from ac3 to either MP3 or AAC? Would it result in a smaller file?