There are thousands of video players available online, but VLC is best amongst them. VLC is highly used video player in the market. You can play almost any kind of video and audio file in VLC. Many many of extensions are supported by VLC. 1 also very good feature is that You can play online content in VLC. You have to just give website link & load it in VLC. So there is no file extension left, which can not be played in VLC.
Best part is VLC is freely available online. it is available for windows, mac. ios. Recently VLC launched for android also. But its not upto the mark. Android version is not as smooth as PC version.
Windows media player is pre loaded in windows. But when you try to play any file, most of the time it will give you error for non support of file extension. But in VLC, you will never ever get that error. For other other player, you will have to separately download codec files for that player, but in VLC, its all included. No need to download any other file. Another feature is volume can be maximized to 200%. Its actually volume boost. But very good feature.
Due to these features, I would like to recommend VLC for use by every one.