Sometime in the 00's Pet Shop Boys started re-releasing their old albums along with bonus discs entitled Further Listening. I already owned Very, but was intrigued by the fact that there was more to be heard. Further Listening discs tend to collect b-sides, remixes, and unreleased tracks. Most of the remixes are non-essential, most of the unreleased tracks aren't too great, and the b-sides are fantastic but were previously made available on the double disc Alternative compilation. So if you've been collecting Pet Shop Boys all along, there's really no reason to own the Further Listening versions of these albums.