This album has David Gilmour stamped all over it and quite a wonderful creation it is. More trippy than ambient, this collaboration is more than just the sum of it constituent parts. It plays to the strengths of all the collaborators and the finished article is a rich, immersive experience. Indeed, the "3D60" version is mixed specifically for headphone use to mimic a surround sound environment.Through a set of good earphones, the music plays through much more sharply and the arrangement of tracks is changed to make the overall effect of a very different album. When the sleeve says 'bonus disc', it actually means what is says on the tin.
If you are a fan of The Orb and Pink Floyd, you are in for a treat.
Just as an aside, all artist royalties from this album will be contributed to the support of Gary McKinnon, the man the US wants to put on trial for hacking the Pentagon. You would have thought that someone that smart would be offered a job and taken very good care of wouldn't you?
So to my mind, a very worthwhile cause.