My machine is unable to play any video format. Error is:
Videos requires to install plugins to play files of the followings
types:MPEG-1 Layer 3(MP3) decoders, MPEG-4 Video decoder.
You need to install ubuntu-restricted-extras
package.
Install it using
sudo apt-get install ubuntu-restricted-extras
Open terminal (CTRL+ALT+T) and paste following command.
sudo apt-get install ubuntu-restricted-extras