Straight up, Piper, More, Ummagumma(side 2), Atom Heart Mother, Lapse of Reason, Division Bell and Endless River sucked. Like, Maybe an album worth of good songs; Cymbaline, Nile song, Fat Old Sun, Grantchester Meadows, High Hopes, Interstellar Overdrive. . . Side 1 of Ummagumma is a redeemable concert recording. Obscured by clouds has a couple solid songs, but kind of repeats one half way through(weird.) Saucer of secrets also has a couple good songs. Set the Controls for The Heart of The Sun, The Gold It's in The. . . , Stay, Childhoods End, Free Four, Careful with that ax Eugene and Let There Be More Light are songs worth while. Meddle, Darkside of the moon, Wish you were here, Animals and The Wall. These albums are really whats worth listening to. pretty much every track on these is fucking gold. I am of the opinion that The Wall is the weakest of the 5.