Using clone dvd mobile and audio is all static

Hey, i’m using clonedvd mobile to convert a dvd to mp4 for my iPod and once the conversion is done, which it says is done successfully, i can barelly hear the audio and there is a great deal of static or white noise over it all. the video is fine. It does this with clone dvd mobile and cucusoft dvd to ipod. please help! thanks,