Blu-ray has three discs
Disc 1 & 2 are Sunday Night performances from the Marillion Weekend 2013 in Holland & Montreal 96/24 5.1 & Stereo tracks
Disc 3 is the full studio version of Sounds That Can't Be Made also in 96/24 5.1 & Stereo along with some demo and jam tracks captured while they were working on the album.
I bought the pack strictly for disc 3 but the live performances are a very nice added bonus. :) The CD was already well mixed, but if you're here you are also well aware that going from 44/16 to 96/24 can really open things up. STCBM is no exception.
I'm keeping my fingers crossed for some more re-releases of their back catalog in 96/24, but realize that it's possible that some masters might not be up for the challenge.