Table 1-2: Best-Selling Albums Worldwide
Artist	Album	Released	Genre	Sales (millions)
Michael Jackson	Thriller	1982	Pop	110
AC/DC	Back in Black	1980	Hard Rock	49
Pink Floyd	The Dark Side of the Moon	1973	Rock	45
Whitney Houston	The Bodyguard	1992	Soundtrack	44
Eagles	Greatest Hits	1976	Rock	42
Note: A number of issues make exact figures difficult to calculate, as historical data before the 1980s and from developing countries is incomplete.
Source: http://en.wikipedia.org/wiki/List_of_best-selling_albums_worldwide