Moth3r said:

The video is easy - if you're using an AviSynth script, just add AssumeFPS("film"). This will cause the video to play at the correct speed without changing any frames.

You could also use AudioDub() to add the audio for your sync check. There's also a great filter that adds the audio waveform over the top of the video to assist with this process, I'll post back when I remember its name.

Edit - AudioGraph

Ok, I was thinking more about how I would set it up to sync by hand. Remember that audio capture is a completely separate step with a different projector than video capture. So they aren't synced at all. I have to go through stretching and shrinking scene by scene until the audio matches the video. Vegas makes that step doable, albeit tedious. But when Vegas imports DV, it assumes the wrong frame rate, which is why I've made a temporary pulldown. In PG, I discarded the version with the temporary pulldown and replaced it with the original video with pulldown flag set. In this case, I'm assuming that I'll need to replace the version with the temporary pulldown and replace it with the one that has been set to "film"?

To mux final video and audio together into the MKV container use mkvmerge.

Ok, I'll check that out. Thanks!