Looks like DSOTM is the 2003 SACD remaster. That's good, but the Piper is 2007 stereo remaster, which I think is bullshit - the mono version sounds so much better, you can actually hear the organ intro to Interstellar Overdrive.
Plus, they're doing a 5.1 mix of Wish You Were Here, due next year which should be an absolute treat.
I still really want to see a release of Point Me At The Sky and some of their other more osbscure stuff reissued.