Thanks for your response Jeremy, no i have not looked @ the footage through a capture card/ calibrated monitor. I do most of my work on my new quad core i7 27″imac. I have never had this problem shooting in 720/24pn, always crystal clear HD.
Also may i ask , you are saying there is no quality loss after capturing mfx(p2) files into quicktime .mov files?
do you have any suggestions how to fix this grainy footage?