HowtoMatrix

Ubuntu does not support .rmvb files by default. Even though you may have installed the Gstreamer codec plugin and VLC (an audio player that supposedly able to play any media format), there is still no way that you can get the .rmvb file to play. There may be many tutorials out there that tell you to configure mplayer to play .rmvb file, but the easiest and fastest way to tackle this is simply install the Real Player for Linux.

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