At playback, the audio at the DVD menu is loud compared to the movie on the DVD. In FCP, I am staying below the 0dB with the audio so that it doesn't become distorted. In DVDSP, I can't control the volume. The menu audio is way too loud. its like that on all the DVDs I Make. How can I fix this?
Revisit your FCP project and adjust your levels. 0 dB is too high. You should be aiming for a range of -12 to -6 in FCP. In Compressor, for the audio stream, set dialogue normalization to -31. If you bring that into DVDSP your DVD should now sound right.