Ubuntu mulitimedia non free repository

You can find necessary information here:
http://medibuntu.sos-sts.com/repository.php

And here is direct instruction for Ubuntu 7.04 from above site:

echo "deb http://packages.medibuntu.org/ feisty free non-free" | sudo tee -a /etc/apt/sources.list
wget -q http://packages.medibuntu.org/medibuntu-key.gpg -O- | sudo apt-key add - && sudo apt-get update