ViviCam 7310 no audio in windows movie maker ?? what codec

[lukeo]

I got a great present from santa and it's a ViviCam 7310 digital camera, In the past i have been capturing my movies with cannon camera's and cut and pasting with windows movie maker all has been fine . tho when i try and import the ViviCam 7310 footage and audio into windows movie maker a codec is needed, I am stuck . What codec do a need ?? I can playback with audio with VLC player.

Regards Luke.