The UK high court has ruled in favour of Nintendo against Playables Limited and Wai Dat Chan in the case of the importation, advertising, and sales of game copying devices such as the R4.

The company must stop selling all illegal devices immediately, which are considered my Nintendo to be those that circumvent Nintendo DS security systems as they allow users to play illegal Nintendo software.

Playables Limited's argument that the devices were lawful, as they allow for the play of "homebrew" applications, was dismissed by the courts due to the fact they have to circumvent Nintendo's security systems before any non-infringing application can be used.

The judgement follows that of a similar one in the Netherlands earlier this month, where the Hague District Court ruled that 11 Dutch online retailers acted unlawfully by importing and selling game copiers for use with Nintendo DS and modification chips for use with Wii.