As the name suggests, Discography is a collection of all of the hit singles by Pet Shop Boys up to that point (1991), alongside two new tracks "DJ culture" and "Was it worth it?". Although all other songs on this album had appeared in some form on their previous albums, only six of the songs previously appeared on an album in their single versions.
Around the time of the release of Discography, Pet Shop Boys also released a video collection, Videography, consisting of the music videos for each of the songs on this album in a slightly different order and with the song "Was it worth it?" being replaced with "How can you expect to be taken seriously?", which itself was not on the audio versions of the album, despite being part of a double a-side with "Where the streets have no name (I can't take my eyes off of you)" (the exclusion due to the constrictions of the CD's running time).
In 2003, Pet Shop Boys released an updated single collection called PopArt, which featured different mixes of "Suburbia" and "Heart" and including the previously excluded "Was It Worth It?". In addition, it featured all the Pet Shop Boys singles released after 1991 with the exception of "Absolutely Fabulous". "How can you expect to be taken seriously?" was included.