I have a workaround for two tracks of audio in editing a long-form film project, but the options are limited by the fact that my camera mike's sound is not the project sound--a boom mike provides the pro sound (DAT converted to wav on CD) and that track has to be synched to each clip.

Thanks to Vegas' realtime playback and waveform graphics, I record the DV with the camera mike on, and after capturing I use the camera audio's waveform on the timeline to perfectly sync the boom sound on a track directly under it, then simply mute the DV audio. Thus--I never delete the DV audio track. At the end, I either output to DVD or to tape, with the camera audio muted--yet always available if something goes wrong.

My problem is that certain Vegas functions, such as the media bin and trimmer, cannot store the clips on the timeline (one avi video/audio and 1 DAT audio converted to a wav file) as a single unit, so all my work takes place along the timeline and nowhere else. (I open a second instance of Vegas with the reels and sound synched in order, then cut & paste them into the project running on the first Vegas, since I can't use the media bins or trimmer once the synching is done).

I'm just wondering if anyone might have developed a more efficient way to work, that doesn't involve rendering 27 reels of DV to new avi files (both for reasons of not wanting to eliminate the track of camera sound, and the obvious storage problem).