I have not made much use of the output from the Medibuntu Project, but at the recommendation of a good friend I have been installing it and all it's repositories on my Ubuntu Linux operating systems for the past 4 years. I've had no problems with any of the codecs in that time and can say I'm well pleased with whatever it is they had to offer.
Today I ran Synaptic and the Medibuntu repositories would not load from therein. Apparently the project has been killed since 13 October, 2013 and the repositories no longer offer updates. It really has not affected me much at all, but I suspect that at least one of my dedicated followers might be interested in what I found during my extensive research into obscure topics. There are instructions on how to purge your system of all traces of Medibuntu, for Ubuntu at least. You can find them here: http://askubuntu.com/questions/356794/t ... o-i-do-now
AS AN ASIDE I will say that I learned something new during my Medibuntu purging experiences. The linked article shows how to do it using Aptitude instead of apt-get. For some reason I've been going through life thinking they are one and the same package managers. But, they are not. In the case at hand, Aptitude is the preferred manager to use in cleaning up your system. Who would have thunk?