Originally posted by colortv
With the Sony ND975V I made the lowest setting possible for HDMI output: 720x480p. Another selection is 720x480i - rogo may have a thought on which one is best and causes the least interference from the DVD player. I'm not familiar with the Denon player's settings.
I am not an engineer but here is how I interpret what the forum is discussing and how to understand how to select the correct dvd player output.
output means it is 480 Horizontal lines of resolution and it is progressive output meaning it scans the whole frame on the screen all at one time. 480i
is 480 lines of horizontal resolution and it is interlaced, meaning it only puts half the lines of resolution on the screen starting at the top and then goes back to the top and puts the alternate lines on the screen.
An interlaced system can cause flickering and causes a problem with the frequency of the frame rates used by the motion picture industry and has to use a system called inverse 3:2 pull down to bring the frame rate to its proper frequency. A poor inverse 3:2 pulldown system can introduce motion artifacts.
The 006 has a native display (SRXD/ LCOS) of 1080p. Interlaced input (480i)that the Sony receives to display the picture must be deinterlaced, subjected to 3:2 pulldown and upscaled before it can use it. These are three extra processing steps which could degrade the picture
Most progressive DVD players give you a choice of 480i or 480p output so 480p would be obviously be the selection of choice. The Sony 006 would use the 480p and only upscale it up to 1080p for the display. This would be an all digital conversion and result in a sharper clearer picture with less chance of any artifacts induced by the processing.
Any professional engineers correct me if I am incorrect.