Out today (October 5th), is the massive six-disc Imagine -- The Ultimate Collection chronicling the sessions for John Lennon's 1971 Imagine album. The set marks the most expansive and in-depth musical look at any Beatles-related project to date, and includes a brand new remastered stereo mix, raw studio recordings, outtakes, extras, and an audio documentary that explores the evolution of each song -- plus new surround mixes on Blu-ray and a revamped Quadrasonic mix.

Also released today (October 5th) is John Lennon and Yoko Ono's 1972 Imagine film coupled with the 2000 documentary, Gimme Some Truth: The Making of John Lennon’s 'Imagine' Album. The two films are issued together on Blu-ray and DVD, with restored and enhanced 5.1 surround sound.

John Lennon's Imagine was released on September 9th, 1971 and hit Number One on October 30th, 1971.

The original tracklisting to John Lennon's Imagine is: "Imagine," "Crippled Inside," "Jealous Guy," "It's So Hard," "I Don't Wanna Be A Soldier Mama," "Gimme Some Truth," "Oh My Love," "How Do You Sleep?," "How?," and "Oh Yoko!"

George Harrison appears on the album, playing electric guitar, slide guitar, and dobro on the tracks "Crippled Inside," "I Don't Wanna Be A Soldier Mama," "Gimme Some Truth," "Oh My Love," and "How Do You Sleep?," marking the only time Harrison ever appeared on solo sessions for a Lennon album.

Yoko Ono admitted to us that she views John Lennon's solo work in an entirely different light after digitally remastering his entire solo catalogue. She told us that she was able to finally focus on the work -- rather than the man: "When I was doing that, I suddenly realized that this was a new experience for me in a sense in that I suddenly discovered -- or I started to discover -- how good John was as a professional musician and as an artist. That really got to me. I wish John was here, so I could say -- 'Hey, you're good (laughs)."

AUDIO: PAUL HICKS ON JOHN LENNON RECORDING 'IMAGINE' AT HOME
AUDIO: SIMON HILTON ON JOHN LENNON 'IMAGINE' ARCHIVE
AUDIO: YOKO ONO ON JOHN LENNON'S TALENT