To playback videos on our Raspberry Pi we installed OMXplayer. This is a media player created by Edgar Hucek specifically for the Raspberry Pi.
Instructions to install
Omxplayer is installed on the latest Raspbian image so you may already have it installed. If not you can install it via LX Terminal using :
sudo apt-get update sudo apt-get -y install omxplayer
To play a video file you just need to type the following into LX Terminal :
If you are using HDMI you should use this command to pass audio over the HDMI interface :
omxplayer -o hdmi myvideo.mp4