"If your audio recording levels aren't too loud to begin with, normalizing the .wav file will make the track as loud as possible without introducing any breakup."

Gotcha. I actually know what normalizing is, I just didn't know why you were asking if the LD soundtrack was already normalized.

"I'm thinking right now that I'll normalize my PCM track to the same reference level as the DD track (-31dbFS)."

I chose to keep the digital PCM unmodified, and raised the volume of the DD track instead.

"There is no digital audio out on my LD player, however I have been told that it is output digitally through one of the analog audio jacks. I haven't experimented with this yet, so I don't know for sure. I hope to capture it digitally if at all possible though."

I'm afraid that isn't the case. PM me and perhaps I can send you my digital capture for your DVD.