Samsung DVD-HD841. I own four of them, and use them all in different setups. I used to have a Sony DVP-NS999ES that sounded great, but it died recently.
I use a Yamaha DVD-S2700 that I found at a very reasonable price on craigslist a few years back. I prefer my Audiolab 6000-CDT to play CDs, but the Yamaha works just fine for the handful of SACDs that I own.