I slowed it down was was 29.970 fps and I changed it to 25.0000. By doing that the video is way, way, way slower
yeah you don`t want to slow it down but rather add or remove frames to achieve the desired rate, make sure you are using the right option in virtualdub

For 29.97fps you can try resampling the audio to 11988hz. It should be close enough that it would only lose 1 second at the end of a video that is 30 hours long
