Mahler, Piano and Strings in A Minor

Hi, I watched the movie Shutter Island last night. Great flick, creeped out my wife a bunch though!

There is a scene that has a LP spining and Leonardo asks what it is "Mahler, Piano and Strings in A minor." I looked it up, in this film, it was played by the Prazak Quartet, but it seems the only way to get his is buying the soundtrack.

Any other great recordings of Mahler, like the above or similar I should go after? I'm particularly fond of chamber and simple arrangements.

SACD or LP is ok

Thanks !