My experiance posted in an other thread.
I saw your post and grabbed my HD-DVD player and brought it into the bedroom were my 42" Panasonic EDTV is (for reference it's a TH-42PD50u). I connected it via HDMI port.
But first I watched The Last Samurai standard DVD, on my Sony DVP-NS755V @ 480p over component. I watch chapters 9, 18 and 33. Sitting distance was about 7ft and the results were very good. The artifacts and defects in the DVD were...