Audio out of sync on dvd

[Exibit]

Hi

I hope I have posted this in the right section of the forum

I am looking for a program that will sort out the audio on dowloaded movie files

If I convert a file to dvd I seem to have a problem where the audio is out of sync with the film, most of the time it is three quarters of the way through the film

Can any one suggest a good program that will not suffer with this issue

 

[Exibit]

No the video is not out of sync when I play it back on my PC, I'm using Nero 7