I just can't figure this out. I've posted a few videos on YouTube and never had this problem: I have video clip with talking over top of music in a couple of sections. When i render out as .avi or .wmv and play it back on my computer it sounds ok. When I upload it to YouTube the voice over track is gone, but you can hear the music level go down over the section where the talking should've been. I even tried rendering out the audio tracks as a separate .wav file, but it doesn't make a difference.
Any suggestions?