I use &ap=%2526fmt%3D18 and it works...see the sample here http://www.cardren.com you can also find more here http://www.google.com/search?hl=en&q=how+to+embed+hd+in+youtube&aq=f&oq= regards JohnDkar http://www.youtube.com/johndkar http://www.live.com/getstarted.aspx
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