Install audio and video codecs in ubuntu

Open up a terminal (applications -> accessories -> terminal) and copy/paste this code:

sudo wget http://www.medibuntu.org/sources.list.d/hardy.list -O /etc/apt/sources.list.d/medibuntu.list && wget -q http://packages.medibuntu.org/medibuntu-key.gpg -O- | sudo apt-key add - && sudo apt-get update && sudo apt-get install -y ubuntu-restricted-extras non-free-codecs w32codecs totem-mozilla libdvdcss2 libdvdnav4 gxine totem-xine xine-ui libdmx1 libxine1 libxine1-ffmpeg libxinerama1 libdvdread3

That’s it.

(if you use 64bit, replace w32codecs with w64codecs)

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If you are looking for a better audio player, I suggest either exaile or bmpx.

You now have 99% of the codecs in the world installed on your system.