http://www.youtube.com/watch?v=wqI4h1uODng
http://v24.lscache4.googlevideo.com/videoplayback?ip=0.0.0.0&sparams=id%2Cexpire%2Cip%2Cipbits%2Citag%2Cburst%2Cfactor&itag=5&ipbits=0&signature=75E045EDF3E793521EBD8674737F80303D67B2F5.3E44E47C637A27BF0AC1E853BFCB462D8280DC59&sver=3&expire=1248228000&key=yt1&factor=1.25&burst=40&id=c2a238875b8e0e78