The Menu for the VideoLAN site
VideoLAN media player can play every media format that exists including youtube .flv and real formats.

VLC or VideoLAN player plays any file format.  A user will only need one media player (VLC) for everything!
 
VideoLAN is a video and media player that is an open source program and is completely free.
Video LAN can even play saved YouTube or any video sites saved files in the .flv format. 
In addition, VLC can play Real formats and any DVD or downloaded video.
Finally, VIdeoLAN can stream online video with ease.
 
VLC is often incorrectly spelled as VLCC, VVLC, or video playeer.

Download VideoLAN vlc download More about VideoLAN
VLC download available here. Top 20 Free.  Disclaimer: Dowloadvideolan is not associated with VideoLAN in any way.