I agree with the first Anonymous user. Look at the band's fame throughout the years. Under the leadership of Syd Barrett, they would have remained an seldom known experimental rock band. Roger brought the band to fame and held it there for numerous years. The band got pissed about that and ousted Waters. They managed to ride on their fame for a little while, but after creating nothing even coming close to the music created with Waters, the band faded into a memory, while Waters put out three solo albums and toured in 1999. Sure, it would be more "fair" to include songs before and after Waters, but personally I think it brings down the quality of the entire album.