ECJ about the enforcement of copyrights in the context of free movement between the Community and Portugal

Copyright. Free Movement of Goods. The enforcement of copyrights against the importation and marketing of gramophone records in the United Kingdom lawfully manufactured and placed on the market in the Portuguese Republic by licensees does not constitute a restriction on trade: does not constitute a means of arbitrary discrimination or a disguised restriction on trade between the Community and Portugal.

IPPT19820209, ECJ, Polydor v Harlequin

C-270/80 - ECLI:EU:C:1982:43