It would be great if Camtasia could support music looping. Flash offers this support, and it would help with the production of presentations that include "pause" hotspot callouts, to help keep the audio going while waiting for user input.
I too would really like this. I use a 3 min soundtrack, but often have longer videos.
Means I have to edit down the volume on the track then copy and paste and paste and paste until my 2nd audio track is full. Fine for a 5 minute YouTube video, not so hot for a 60 minute traiing DVD.