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I have noticed on some videos that when I play some unusual video formats I always see this message. Can someone please give me instructions how to resolve this issue? Which codec do I need to install to get rid of this?

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up vote 1 down vote accepted

Search for ubuntu-restricted-extras in the Software Center and then install it.

This installs all the non-free video decoders in ubuntu. Since they are non-free, they are not included in the Ubuntu CD.

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Yai did this in the very beginning but no use . It still pops up – OmiPenguin Jun 17 '12 at 9:23

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