User:Mauri96/sandbox/Test area for "List of best-selling albums"

As a result of the methodology that the American and Canadian certification-awarding bodies, the RIAA and Music Canada, use, each disc in a multi-disc set is counted as one unit toward certification, leading to many double albums on the list—such as Pink Floyd's The Wall and the Beatles's The Beatles—being certified with a number double the number of copies sold there. Such albums have the certifications for the number of copies, not discs, shipped indicated.

Conversely, the American certification level for double albums that fit onto one compact disc, such as the Saturday Night Fever soundtrack reflect the actual number of copies sold.

40 million copies or more

 * Markets' order within the table is based on the number of compact discs sold in each market, largest market at the top and smallest at the bottom.

20–29 million copies

 * Markets' order within the table is based on the number of compact discs sold in each market, largest market at the top and smallest at the bottom.