I know I'm one of the few still using Womble... and after this project probably not much longer.
I found another bug that you all might want to know about.
If you only let Womble re-encode audio at edit points (as opposed to fully re-encoding), you can get weird volume fluctuations at edit points.
Here's why: Stream copied ac3 leaves the dialog normalization level untouched. Re-encoded segments have the normalization re-set to -31db (regardless of what you tell Womble to use as the audio source reference).
In the case of what I'm working with I get:
Main movie audio (-27db)---Cross fade area (-31db)---Deleted Scene(-31db)
So the audio of the main movie suddenly spikes 4db before fading out.
I'm going to see about dropping Womble a line about this, but in the mean time either allow full re-encoding of audio (ugh), or use VOBDNorm to rewrite all normalization of your completed edit (less ugh, just labor intensive).
ONE MORE thing. I know there are those that claim normalization is ONLY applied when dynamic range compression is turned on (aka midnight mode), but this is NOT true.
Correctly built Dolby decoders use it as a reference to keep changing sources, features, etc. at a steady level so you aren't constantly fussing with your volume control. (For example on Digital TV shows to commercials, etc. should have the normalization set so that the commercials aren't louder (in theory anyway)).
PowerDVD even simulates this (even when set to full unaltered dynamic range). Generic software media players may not (so this might go unnoticed until too late).
I think Jetrell Fo is right, an expansion of this guide (or new guide) for Vegas might be helpful. Every time I look at the program I chicken out and go back to Mpeg Video Wizard.
Edit: Heard from Womble. Nothing helpful and an unreasonable request for files for them to examine. Probably won't be fixed.
My recommendation for Mpeg Video Wizard editors who want to avoid this problem (it only occurs when your sources are Dolby Digital with dialog normalization set to anything besides -31db(?)):
1) Uncheck "re-encode the whole audio if any part needs re-encoding" when ready to export the final streams. After building the final DVD use VOBDNorm on each VOB file to set the normalization where you'd like it. (Or you can leave the re-encode option checked and suffer the slight quality hit.)
2) Get Sony Vegas.