I have a DV45A, and about a month after I purchased the unit, it stopped reading discs. It was swapped out under warranty, and I've had no problems since. That was about a year and a half ago.
The picture is terrific (beats the JVC it replaced by miles & miles), and the remote is one of the best I've used. It offers a pseudo-bass management option for DVD-A/SACD, but it's far from ideal. Give a lot of thought to getting an ICBM if you plan to listen to DVD-A or SACD discs. I'm not familiar with the Denon, but I'm perfectly happy with the Pioneer.
