Revolver (Beatles album) as the Beatles'. While also highlighting the importance of the production, David Howard writes that "Revolver" was a "genre-transforming album", on which Martin and the Beatles had "obliterated recording studio conventions". Combined with the similarly "visionary" work of American producer Phil Spector, Howard continues, through "Revolver", the recording studio had become "its own instrument; record production had been elevated into art." Whereas "Sgt. Pepper" had long been identified as the Beatles' greatest album, since the 2000s "Revolver" has often surpassed it in lists of the group's best work. Sheffield cites the album's 1987 CD release, with the full complement of
Greatest Hits Volume 1 (Beatles album) original 1965 stereo mixes of "I Want To Hold Your Hand" rather than the new stereo mixes created for the late-1966 compilation album "A Collection of Beatles Oldies". The mono editions of the album feature fold-down mono mixes, with only "She Loves You" and "I'll Get You" appearing in true mono, due to the unavailability of stereo mixes at the time of the compilation. The cover art was borrowed from the U.S. Beatles album, "Beatles IV" with the back cover using elements from the German album "The Beatles Beat". The mono version of Greatest Hits Volume 1 was released in