Creating videos of FS9 to share with the community

I'm not sure if this is the best place to ask this question, but I thought I take a shot.I have watched and enjoyed many flightsim videos posted to YouTube and Simtube. I though I take a shot of creating my own and have put together the tools I would need to create the videos. The problem I am having is when I record something with FRAPS, is that the sound is being recorded at such a low level that during playback you can't hear it. Now I plan to dub in other sounds for the video, but I would like some of the FS9 sounds to come through. I haven't tried to record any other "sim/game" to see if it's just an FS9 issue.If anyone has any input or suggestions, please let me know.thank you.