Anyone explaine to me what HD-SDI is. Is it the same as a regular HD signal? What i would like to do is. Play a HD DVD from my 360 using component or VGA, go into one of the products at http://www.aja.com/index.html then into a HD capture card and capture it at 720p. The capture card only has an RF connector fot OTA HD. Could one of the aja products output to a signal that my capture card could recognize?