On Wednesday 09 April 2014 20:35:13 Tini wrote:
> Can anyone tell me which codecs I need to download from the
> ubuntu repo in order to play mp3, avi, mpg, mkv, etc files?
>
> I'm trying the Live-CD but nothing plays. I understand this is
> done for legal reasons.

You want a package called ubuntu-restricted-extras.  once you have 
installed it, multimedia files Just Work.  

https://apps.ubuntu.com/cat/applications/ubuntu-restricted-extras/

Lisi