I'm using Nero Ultra Edition version 6.0.0.11 and when I convert a vob file to an mpeg 1 or 2, the video is always slightly ahead of the audio on playback. It's only about one second or less but noticeable. The source DVD is a DVD-R burned from the hard drive on a Panasonic video recorder. It doesn't matter which quality setting is used during processing or if the audio is set for Dolby Digital or LPCM. Has anyone seen this problem or does anyone know what area of the settings affects this?