which is the best media player in which all types of files run smoothly?

I use Mplayer , for windows it has "SMPLAYER" .

Its lite, free and do what it need to do and nothing fancy and plays almost all format you can get.

Other I can suggest is VLCPlayer, very famous and feature rich.

I also heard many people like GOM Player.

THANKS..RICKY

try K-Lite media player.....