LD audio is better than the DVD? Do you know something about their history? I could try my hand if the two need to be blended somehow, such as surround channels being more dynamic in the LD.
I believe the LD audio is actually stereo, so it doesn’t use the surround channels at all. However it’s supposedly the original theatrical audio mix, whereas the DVD mix was a new one done for the DVD release. The Laserdisc audio is also supposed to be nearly lossless whereas the DVD has a compressed AC3 mix. The best option would be to include both. I’d bite the bullet but:
1.) I already spent too much on this movie importing the PAL DVD
2.) I don’t have a laserdisc player, or any of the equipment I would need to properly capture the audio.