The promo is all the songs on the album without any of the Jim Ladd and Billy voice overs so each song has the full lenght version so you hear each song the way it was originally recorded,
gives the album a much better flow. I assume the intent was to provide the radio stations with the ability to play any track as a single on the air and not have the talking which would not make sense on the radio to a person hearing one song for the first time. Kind of unique because that means there are or were to different master made for this album.
Waters said: "Between
Ian Ritchie and myself, we really fucked that record up. We tried too hard to make it sound modern. I allowed myself to get pushed down roads that were uncomfortable for me. I should never have made that record." Waters regrets his decision to trim the album from a double to a single one, thus losing much of the concept.
I find this album music wise to be his best but I guess most people don't