How to add the Medibuntu Repository

Medibuntu (Multimedia, Entertainment & Distractions In Ubuntu) is a repository of packages that cannot be included into the Ubuntu distribution for legal reasons (copyright, license, patent, etc).

To add the Medibuntu Repository go to Terminal (Applications > Accesories > Terminal) and use the correct sources.list that corresponds to your current distribution:

Any Ubuntu Release and keyring:

sudo wget http://www.medibuntu.org/sources.list.d/`lsb_release -cs`.list --output-document=/etc/apt/sources.list.d/medibuntu.list; sudo apt-get -q update; sudo apt-get --yes -q --allow-unauthenticated install medibuntu-keyring; sudo apt-get -q update

For Ubuntu 9.04 "Jaunty Jackalope":

sudo wget http://www.medibuntu.org/sources.list.d/jaunty.list --output-document=/etc/apt/sources.list.d/medibuntu.list

For Ubuntu 8.10 "Intrepid Ibex":

sudo wget http://www.medibuntu.org/sources.list.d/intrepid.list --output-document=/etc/apt/sources.list.d/medibuntu.list

For Ubuntu 8.04 "Hardy Heron":

sudo wget http://www.medibuntu.org/sources.list.d/hardy.list --output-document=/etc/apt/sources.list.d/medibuntu.list

For Ubuntu 7.10 "Gutsy Gibbon":

sudo wget http://www.medibuntu.org/sources.list.d/gutsy.list --output-document=/etc/apt/sources.list.d/medibuntu.list

For Ubuntu 6.06 "Dapper Drake":

sudo wget http://www.medibuntu.org/sources.list.d/dapper.list --output-document=/etc/apt/sources.list.d/medibuntu.list

Then, add the GPG Key:

sudo apt-get update && sudo apt-get install medibuntu-keyring && sudo apt-get update

Now you can install: Adobe Reader, Google Earth, Amarok and Skype.

Source: help.ubuntu.com