Download and install Avidemux from [[http://avidemux.sourceforge.net/|http://avidemux.sourceforge.net/]]

Launch Avidemux

Open your video or audio in Avidemux

{{:open-a-video.png?700|}}

Set your video to h.264 (mpeg-4 AVC)

{{:set_video_to_mpeg-4.png?700|}}

Set your target bit rate to 500.  This is ideal in most cases, but for larger video sizes, you may want to use a higher bit rate.  Most groups do not choose to go over 700 due to viewers on slower Internet connections having trouble with playback.

{{:set_video_bit_rate.png?500|}}

Set your audio to AAC (faac)

{{:set_audio_aac.png?700|}}

Set your audio bit rate

{{:set_audio_bitrate.png?300|}}

Set your container to .mp4

{{:set_video_to_mpeg-4.png?700|}}

Save your project!   Remember to make sure you give the file a name and use underscores instead of spaces.  Also make sure that you add the .mp4 extension to the end of the file name.

{{:save.png?700|}}