Surely most of you have some, if not many, movies on DVD and you are used to watch them on the PC.
Unfortunately, due to licensing Ubuntu is released only with free codecs for multimedia playback and therefore it requires few additional steps to have the codecs for proprietary formats (DVD, mp3, avi, etc.).
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Fixing "PPA name or format is correct" on Ubuntu
We have seen how to add an additional repository on Ubuntu and it is a very simple process, but in some rare case we may get an error message that says:
Cannot add PPA: ‘ppa:<ppa_name>’. Please check that the PPA name or format is correct.
How to manage additional repositories on Ubuntu
One main advantage of a Linux distribution over Microsoft Windows and Apple Mac OS is the presence of the “package manager”, the father (fathers actually, since there are many package managers) of the App Stores we now commonly find on smartphones.
The default repositories configured on the package managers are usually managed by the same company or team that created the distribution in use, Canonical in the case of Ubuntu, and generally they are sufficient to manage any software that we may need, but some time it may be necessary to activate an additional third party repository to be able to install a specific software or receive updates more rapidly for some common applications.
