Despite the breathtaking harmonies found on the 50th anniversary box set of Crosby, Stills, Nash & Young's Déjà Vu collection, according to the long-estranged David Crosby and Graham Nash, a reunion with Stephen Stills and Neil Young isn't in the cards.

The new four-disc collection, which was curated by Nash, features 38 newly released tracks features demos, outtakes, and alternate versions.

Included in the box is a remastered version of the original LP, a 12-by-12 hardcover book, rare and unseen photos, "as well as annotations by writer-filmmaker Cameron Crowe. Crowe can be heard recounting the making of the LP through first-hand accounts told by people who were present at the time" — including the band.

Crosby, Nash, and Stephen Stills were all interviewed separately on CBS Sunday Morning. David Crosby was asked if he saw himself and Graham Nash ever patching up their splintered relationship: ["I don’t. No, I don't expect to be friends with Graham at any point. Uh, Neil hates my guts. I said bad stuff about his girlfriend. Probably. . . .  (whispers to himself) 'Don't say it David.'"] SOUNDCUE (:09 OC: . . . say it David)

Graham Nash was asked if he communicates with his bandmates: ["Stephen and Neil (Young) and I are great. We talk often. We don’t talk to David. Y'know, when that silver thread that connects a band gets broken, it’s very difficult to glue the ends together, it doesn’t quite work. And so, the things that happened in my and David’s life broke that silver thread, and for the life of me I can’t put it back together. I do wish I could — only because of the loss of the music."] SOUNDCUE (:26 OC: . . . of the music)

CBS THIS MORNING – David Crosby On Feud With Graham Nash And Neil Young :

CBS THIS MORNING – Graham Nash On Feud With David Crosby :