I use the following technique to get different audio synched to the same clips with MCD:
First, here's my setup
I record video from three cameras and cockpit voice on a separate audio recorder. For my end result, I want the cockpit voice recording that goes with the video clip AND, I also want the ambient sound that the camera recorded.
Here's my solution:
I load my video and audio clips into MCD and do my selections (recordings) then click OK to return the results into PD's timeline in the usual fashion. When I'm happy with my recordings, I copy ONE of the recordings and paste it on another track. This makes a copy of that MCD session. Now if I select MCD for that copied recording, MCD recreates all of the recordings from the original MCD session. While I'm in MCD for the copied session, I select the audio from the camera I want, rather than the imported audio. Then I disable the video channel of the copy MCD and just leave the audio. Channel. Then I can adjust the volume of that channel to blend with the cockpit audio.
Scott Hendry
www.scotthendry.com
YouTube username TheCscottHendry