I have just bought a Pioneer DV-466 and have only tried one rental dvd so far.
this dvd only had a few very slight scratches, but got to one scene and after skipping for a few seconds totally stopped and refused to play.
I tried it on and old LG all in one system (which was being replaced as it skips all over the place even with the slightest scratch) and it played the same scene with no problems.

I researched the DV-466 for a long time before buying it - after all the reviews I had read said how scratch tolerant it was!!!!!

Do I just have a dud machine - or have other people had the same problems????