Hi everyone I am compiling a DVD, but in the raw-material, I have some files of the audio in .mpa, and some in the format .ac3 now I am using DVD-lab, and of coures, when I mix both, my test-DVD-player will not read some of the audio. Is there an easy way to change the .mpa files into ac3, since I can not use "audio-delay" funktion with mpa in DVD-lab. I know I am new, but it would be a great help to me if you would share your thoughts! Also, I still have not fixed the problem, that in the preview-monitor of DVD-Lab, I can see picture, but hear no sound! Thank you everyone