The Aluminum Falcon said:

Hello I couldn't think exactly which thread to put this in; however since this question relates to PAL to NTSC conversion albeit a different kind than described here, I thought this might be the best place.
Anyway, I was just making a quick PAL to NTSC conversion for some friends, using the DGPulldown method Doctor M described here in his Reinventing the Wheel thread:

Doctor M said:

Now if you augment this by demuxing the audio and video then using DGPulldown from 25 fps to 29.97 fps and remuxing/authoring you have a different beast altogether.
I saw this for the first time today and thought it was genius, what they are doing is using IFO edit to fool the DVD player into resizing the video to NTSC for you. The DGPulldown keeps the video at 25 fps on the disc but the DVD player performs telecining on the fly up to 29.97 fps for you (no I didn't think that was possible either). The huge benefit is the audio does NOT have to be re-encoded. In fact nothing does. You're just tweaking a bunch of flags and let the hardware do the rest for you.

Now comes my question: If the PAL disc has an audio delay, when you remux will you use the exact same audio delay? I'm generally awful at calling how out of sync the audio is, so I was wondering if there was a way to calculate exactly what the new audio delay (if there is a new one.)

I am not DrM LOL but I have done these conversions a ton of times, when I get my PAL audio and it has a delay on it, for example -67 let's say, I will use DVDLab Pro, DelayCut or whatever you use and correct the PAL audio with the delay -67, then I would use EAC3to or BeSweet\BeLight to slow down to NTSC, then once you convert the video from PAL to NTSC, everything should be 100% in sync, not sure if this is how everyone else does it but it works for me, and knock on wood, I have not had any sync issues at all.