May I ask why are you using an external audio editor? I have a Tm-700 and a HDC-SDT750, both 5.1 audio. If I don’t need midi instruments or have to fix pops or clicks, I could probably stay in Vegas. Vegas 1 and 2 were audio only. It supports directx and vst pluggins. But can you select the one audio track, event and hit the U key. that unlocks it from the other audio tracks and video as well. then try opening it in an external editor. By the way, your camera can capture at 1080 60p right? Vegas allows us to make custom project and render presets to work with those files. Hope this helps, Danny Hays