title: how do i get the flv file path from a youtube URL
body: <p>i have an swf media player
  which play flv videos 
  but i want it to play youtube videos
  so i must pass to the player flv file path</p>
  
  <p>the senario is a website which i can upload videos or put a url
  and i can put a youtube video URL</p>
  
  <p>i am using asp.net
  and i need a solution 
  whenever i detect a user is entering youtube video
  i must convert it to flv file path to be played in the player</p>