There is an article about progressive scan and HD in the current issue of The Perfect Vision. I found it to be very informative. I've lent the issue to a friend so can't refer to it at the moment. If I remember correctly the essence was that progressive scan is better if you have a monitor that can handle the signal. As with audio electronics there seems to be a wide variance in the capabilities/quality of HD and Digital monitors and progressive scan DVD players. I encourage you to purchase a copy of The Perfect Vision.
Progressive DVD players?
I am going to purchase a new DVD player and am considering the Sony S7700 (being discontinued). I don't own an HDTV, or HDTV ready, TV that can take advantage of progressive scan, but I will probably purchase one in the near future. Is the quality of progressive scan pictures that much better? I will use the unit 70% for music, 30% for DVD. I am interest in your thoughts on the different players out there.