Some of the footage was shot on a Sony Camera in 1080i HDV. Some was shot on a JVC 700 in 1080i. It is edited together in a 1080i time line. That seams to work fine and looks great on a HD preview monitor. I then save it out to a Quick Time file using the Current Settings. I then pull that Quick Time file into Compressor to make the m2v file. I use the 90 Min. Best Quality settings in compressor. I then put that file into Studio Pro to make the DVD. On a SD TV it shows up as Letter Box, and looks good. On the HD monitor it looks very compressed and grainy not at all like it looked before going into compressor.