good "headphone" albums? - Page 4

Angus & Julia Stone - A Book Like This
DJ Shadow - Entroducing
Jeff Buckley - Grace
Nick Cave & Warren Ellis - The Assessination of Jesse James by the Coward Robert Ford OST
UNKLE - Spyence Fiction
UNKLE - Never, Never, Land

Concerning Dark Side of the Moon...

On the one hand, it is an excellent album in stereo that I myself use to evaluate headphones.

On the other hand, it was very specifically recorded for quad - which anyone can prove for themselves, by listening to it in the original Alan Parsons Quad version on any setup with four speakers.   For example, in Any Colour You Like, the various sounds only really make sense when they are bouncing around the four speakers.

Going any further about Parsons and Floyd ends up as a 64-page thread, so I will leave it at that for now...

... more in line with the OP's tastes:

Bjork - Post

Tuneyards - Whokill

Galactic - Crazyhorse Mongoose

I haven't read through all the pages in the thread, but I'm going to throw out Pearl Jam's "Binaural". As it's title suggests, parts of it use binaural recording techniques.

Lady Antebellum - Need You Now (the album) [Country] is produced & mixed absolutely beautifully and is a great pop / country album.  It sounds like heaven with the SRH-840s!  The album is nowhere near as compressed as most the rock albums I own and is mixed a tad on the mellow side which sounds warm, punchy and yet incredibly crisp in the highs.

Edit: Be sure to get the US edition, not the altered international / pop edition.