yeah, the DVD-A has surround mixes, stereo mixes, plus a few videos. You'll have to play it in some sort of DVD player, but if you want the true MLP lossless version, go for playing it in an DVD-A player. I think the stereo tracks/videos are 48/24, and pretty sure it won't play as a CD.
I have the SACD version too, and mine has stereo mixes and surround mixes. I haven't been able to compare them side by side, I lack an adequate surround set up, as well as two units to play from.
For me, since I don't own a surround SACD player, my preference falls to the DVD-A.
If you can find a SACD format with stereo SACD/stereo CD, you might try it.
hope this helps,
Andrew