According to Clinton Heylin in his book Bootleg: The Secret History
Of The Other Recording Industry:
* 1987: The Beatles - Get Back acetate, BBC sessions, and Sessions
(Probably the first genuine bootleg CDs; a young entrepreneur
convinced the Technotronics pressing plant in Philadelphia that
he worked for EMI and needed these three CDs pressed in quantities
of 500 each as "promos". They did it! He sold most of them for
$100 each at the 1987 Beatlefest.)