Radio transmitters in DVD chips 'to kill illegal copying'

DVDs will soon be tracked with embedded radio transmitter chips to prevent copying and piracy, according to the company which makes movie discs for Warner, Disney, Fox and other major studios.

The technology, which can also be used for Blu-Ray and HD-DVD discs, will allow movie studios to remotely track individual discs as they travel from factories to retail shelves to consumers' homes.

Home DVD players will eventually be able to check on the chip embedded in a disc, and refuse to play discs which are copied or played in the 'wrong' geographical region, the companies behind the technology expect.