We use silver lite media player to create a web application for video gallary as same as youtube. the display style and others are different from youtube. Our problem is that the silverlite media player is not playing the vidoes if the size is more than 200 MB. If the file size is more than 10 MB then the buffring takes time. For large file size the buffering is so long and the video file will play after the 100% buffering only. If we use windows media player or any other user defined players in other sites it is functiong smoothly.. So the real problem is that how we manage the buffering and file play at a time if the vedio size is more than 20 MB in a silver light web application which use silverlite media player.