When the core catalogue was reissued in remastered editions in 2009, the two volumes of Past Masters were combined into one double album.

[2][3] The Beatles' international discography is more complicated due to different versions of their albums sometimes being released in other countries, particularly during their early years on Capitol Records in North America.

The first seven British Beatles albums were converted into ten LPs for the American market, adding material from singles and the UK EPs; the band were unhappy with these reconfigurations.

The Beatles' discography was originally released on the vinyl format, with full-length long plays (LPs), shorter EPs and singles.

Over the years, the collection has also been released on cassette, 8-track, compact disc (CD), on a USB flash drive in MP3 and 24-bit FLAC format, and on digital media streaming services.