sorry for not answering at once - too busy
If I understood you right, the problem might be the audio channel?
I tried to find information about the mentioned audio format, but I did'nt find anything. What would be an audio format that meets the DVD specification?
I suppose the audio information is embedded in the MPEG2, so how could I modify it? Or can I take influence on the NVAPI somehow?
Thanks again for any helpful posts.