BB, you say:- ...............then find the command for it in the Project Options > Audio Tab. It's a small tick box, easily missed, but when selected the music is automatically trimmed back to just the 20 seconds you used........................... Where is the small tick box you mention? In v8.03, Project options/Audio tab, of the 3 tick boxes I see, none say anything about automatic trimming. If it is there, I certainly missed it!!!