Kobo launches Aura HD reader to challenge Kindle

Kobo has shown off its latest e-reader at the London Book Fair.

The Aura has a high definition display and is the "closest thing to reading real print on paper", according to chief executive Michael Serbinis.

Rory Cellan-Jones asked him how the product would compete with Amazon's Kindle - and what the growth prospects are for the e-book industry as a whole.