Most powerfull Media player around

While playing the video or music file you might have come accross

the error that your media player do not support the perticular format.

I tried the VLC player which seems to support the most available formats.
It does not need installation and can be played from the directory it recides
in windows.

Its a good open source software which can be installed on Linux and Mac.
I am using this player on windows and Linux. Its worth recommending.