The information in this article applies to:

• SONAR 3

The Edit > Bounce to Track(s) Command bounces all buses to separate tracks by default. You should be aware of this when, for example, you bounce a track which also feeds a bus. In previous versions of SONAR, a single track would be created by default. In SONAR 3, you get one track for the track's outputs bus, and an additional track for each bus the original track is sending to. 

You can change the behavior to bounce to a single track (choose "All Main Outs to Single Mix"), but the default setting will create a track for each bus that is assigned in the current track selection.