Here is a guide to install the VLC media player on Ubuntu 13.04. You can install VLC by adding the Nate Muench PPA for VLC media player .
VLC is a powerful media player playing most of the media codecs and video formats out there. VLC is a simple, fast and powerful media player. VLC plays everything: Files, Discs, Webcams, Devices, Streams and VLC plays most codecs with no codec packs needed: MPEG-2, DivX, H.264, MKV, WebM, WMV, MP3. Visit the VLC Homepage.
To add the PPA and install VLC open a terminal window (press Ctrl+Alt+T) and copy+paste the following lines:
sudo add-apt-repository ppa:n-muench/vlc -y
sudo apt-get update && sudo apt-get install vlc
When the installation is finished you can close the terminal window, to start VLC press the SuperKey and type: vlc