Editing audio on a pre-made DVD: How would you do it?

[rockstar_not]

Here's the situation:

Normally, our church records audio/video to VHS, for when folks shut-in at home would like to hear/see a past service.

This past weekend during our Christmas music concert, the VCR gave up - of course nobody knew it at the time.

Well, the concert was also being recorded onto a digital video camera. The guy that owns that has burned a DVD of the material and I believe he zapped the original digital material that was in memory on the camcorder. Audio was simply that picked up by the camcorder mic(s) (I don't know if it's a stereo camcorder or not). Marginal audio quality at present - not overdriven, just some bad peaks in it and fairly low level.

Q1: Can audio be extracted from the DVD into T that will have some kind of clock stamping for re-syncing to the DVD video?

Q2: If so, what is the process for that?

Q3: If not, what would you do in this situation?

I have a plan for trying to even out the audio with this signal chain:

Voxengo SPAN FFT Analyzer to view the dominant peaks over some long segments.
Parametric EQ to pull out the nasty resonances (seems like there is at least one between 1kHz and 2kHz just from previewing it)
Maybe another instance of SPAN to see the result post-eq.
Final Mix or other multi-band, to pull up some of the stuff that is down in the mud and twiddle with the post-EQ to probably tame the high-end hiss that may result from the multi-band.

Thanks for any advice you can provide.

-Scott

[metamorphosis]

Here's the situation:

Normally, our church records audio/video to VHS, for when folks shut-in at home would like to hear/see a past service.

This past weekend during our Christmas music concert, the VCR gave up - of course nobody knew it at the time.

Easy work-
dvdshrink to rip the dvd to hard drive (or just copy if unencrypted.
download pgcdemux & use to demux the dvd to m2v, ac3/mp2/wav.
Use winamp (wave to hard disk) or something else from doom9.org to decode the audio to .wav (if it's not already).
Do whatever you like to the wav, don't worry about timecodes or whatever - all that stuff's separate in a dvd anyway-
now, use ffmpegGUIXP to turn the .wav into a .ac3 file (ac3 being the most compatible format of all dvd audio formats) @ 224bps, stereo.
muxman to recombine the .m2v, .ac3(s) and chapter info (celltimes.txt) back into vobs & ifo files-

then use nero or similar to burn the vobs/ifos into a DVD video-
simple. All tools are freeware btw- just google em or look on www.doom9.org. I've been doing all this stuff to fix the subtitles on the GITS2 DVD so I guarantee the requisite tools work.
Cheers,
m@