Although it flew under most people's radar, Mark Knopfler's Shangri-La (2004) is one of the best I've ever heard.
I like the two-disc format because then you can easily hear it in the car. Which prepares you to notice the sound upgrade when you throw it in the disc player.
The music is spare but sumptuous, dreamily like its title -- belying the violent story lines of most of the songs. The vocals are particularly nuanced on the DVD-Audio disc.
An outstanding application of 5.1 technology to a brilliant recording.