Sony's chief executive has told the BBC that developers are working on 100 or more titles for its forthcoming virtual reality headset.

HTC and Oculus have made more noise about their rival gear at the CES tech show over recent days.

But Kaz Hirai told the BBC's technology correspondent Rory Cellan-Jones that the PlayStation VR had attracted a lot of support from third-party games developers.

Read and watch more from CES and follow the BBC team covering the event on Twitter.