Shortly after the initial announcement, Capitol Records revealed that the new remasters for the US versions of the albums are partially based on the original 1960s masters and the 2009 remasters released in The Beatles (The Original Studio Recordings) and The Beatles in Mono. Unique stereo and mono mixes prepared in the UK for US release are sourced from the original tapes. Any unique versions prepared for US release will be recreated for this set. The tapes used for the 2004 and 2006 Capitol boxed sets drawn from the Capitol tapes are not used in this set with the exception of The Beatles' Story (which will be drawn from Capitol's tapes of the album).
The albums Sgt. Pepper's Lonely Hearts Club Band, Magical Mystery Tour, The Beatles (the "White Album"), Yellow Submarine, Abbey Road and Let It Be are not included in this set, as those albums were identical to the UK editions already available. Originally, the American version of Magical Mystery Tour was also unique, as Capitol Records compiled the band's British EP and 1967 singles, but was released in the UK in the 1970s, and then formally adopted as part of the core catalogue in 1987 for the band's CD releases.