I just swapped out my Toshiba SD4800 with the Denon DVD 1600, and the first thing I noticed was that the picture was better. It appears to be sharper than it was with the Toshiba. However, the second thing I noticed is that the picture on my Sony 34" XBR "bows" up now from the bottom center when watching a 2.35:1 widescreen movie. Essentially the bottom of the picture is an upside down smiley face . I also noticed that the upper right of the picture curves down. And I know this is not my imagination because I was able to measure the distortion with a metric ruler. There is about a 3 mm droop from center to outside edge. Just wondering if anyone else has experienced this distortion, and is it possible the Denon player is the culprit ? (I didn't notice this distortion with my Toshiba player). Also, is there anything I can do to correct this problem ? ...Professional calibration ?