I am new to elementary OS, what codec do I need to play MP4 videos from my storage off-line?

I get this error message: Oops! Audience kann diese Datei nicht wiedergeben! No URI set. (in English: Oops! Audience can't play this file !)

1 Answer 1


You should install the package ubuntu-restricted-extras in terminal:

sudo apt-get install ubuntu-restricted-extras

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