Crackdown on Piracy

How the music industry is redoubling efforts to tackle piracy - but some people claim they're being wrongly targeted.

Amazon unveils its TV streaming player - will it make a big splash or be a damp squib? And - the tech of high frequency trading on the stock market.

Presented by Rory Cellan-Jones, with special guest Dr Jo Twist of The Association for UK Interactive Entertainment, and Leo Kelion and Dave Lee from the BBC Online technology desk.