I have NeroVision Express 3.1.0.25. When I convert/burn avi to dvd files, the audio is fine at the beginning, then becomes out of sync for a few seconds. Ive seen the word codecs around a lot and Im wondering if that would help, and if it does, could someone help me through that. (Tell me where to get the codecs, how to install them, etc.) Somebody please help me fix this problem, its driving me nuts!