I am grabbing video with a matrox G400 using pic video codec. I convert it with Ulead DVD Moviefactory to an mpeg 2 at 5000 kbs, field order B, joint stereo audio at 48000kz 224 bit rate. If I play the mpeg file from the pc via the matrox 'bob' the audio is fine, after burning it to a dvd the sound is slightly behind the video: any ideas?