php script to downlad videos from major video websites

We need a php script that is able to download the videos (the link to watch the video is given) from the following websites and save them into a specified directory: "youtube.com", "dailymotion.com", "metacafe.com", "break.com", "myspace.com", "megaVideo.com", "yahoo.com", "veoh.com", "spike.com", "revver.com", "nbc.com", "tudou.com", "msn.com", "youku.com" Requirements: The script should not rely on third-party website to download the videos. It should be able to download the videos directly from the video site. Sample Usuage: php [login to view URL] [login to view URL] /home/videos/downloads A file named "youtube_VQ3d3KigPQM.flv" will be created under /home/videos/downloads directory php [login to view URL] [login to view URL] /home/videos/downloads A file named "metacafe_2315050.flv" will be created under /home/videos/downloads directory