Joining two avi files?

Does anyone know if Sonar 8.5.33 can join two avi's and render them without quality loss?
 
Thanks - rev

Hey Rev.
As Dub mentioned, the video file imported into Sonar must be a single, contiguous file.
There are no video editing capabilities in Sonar whatsoever. The video function is mainly to give you a reference for synchronizing your musical score.
Moviemaker will do what you want, and you already have it. It can export avi, and should give a bit-for-bit render.
You can't get too crazy with it, but it will perform basic edits.
Remember, avi files are very large, and uncompressed, so allow plenty of space on your HD.