You need to know if the problem is with the camera or with the program you are using to play the video.
We often see complaints about certain programs will not play the sound.
Try a different video player first.
There are many free programs available for playing .mov files.
Here is a link:
You might try the VLC movie player first.
Ok when i record a movie there is no audio at all but the microphones are picking up voices etc because in the movie audio options the db meter on the bottom of the screen moves when i talk etc any help at all would be nice thanks in advanced