Hi

The technique you describe is called Insert Editing (I was wondering when someone would bring it up again) and has been around for years. It's used a lot in television news reports and especially interviews where you have a talking head who is describing something and we then cut away to show what they are actually talking about. You see new pictures but still hear the person talking. You do need to separate the audio and video and cut out the parts of the video where you want to Insert the new video showing what they are talking about. Just short clips around a few seconds each. I suggest you record all your testimonials first and either listen to what the people are saying and make a list of what you want to show or play the tape back later and then make a list. Then take the camera and go out and record the required scenes. When done transfer everything to the computer and open in your editing programme. Find the end of your actual programme and separate it from the clips you want to insert, then go back to the parts where the testimonials take place and start using the razor to remove only the video portions and fill the gaps with the new scenes.

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