This feature seems to work in Sound Forge ok for me. One thing that I wish would be added which probably ties in with a couple of comments I read in this thread....this functionality is a bit better in the Sony Vegas implementation. Sonar seems to automatically open a copy of the source file in the wave editor. Well in the Vegas implementation you get a choice, of either "open a copy in wave editor" or "open in wave editor". Thus if you want changes to take place on the source file, you just select open in wave editor and when you save from the wave editor the source file gets updated with the changes. If you want the source file to remain uneffected, then you select "open a copy in the wave editor". It would be good to have both options like in Vegas. Continuously creating copies of the file can leave a lot of extra audio files on your HD that you don't necessarily want. You're eccentially making a copy of the file everytime you choose to use this feature.

Sonars implementation on selecting your Wave editor seems pretty incomplete also, seeing you have to jump through hoops to use Audition to make it appear in the tools menu. In Acid and Vegas, you goto a preference menu where you select your "prefered wave editors". Thus you use a browse button within the app and point to the executable file, and then you have access to use whatever wave editor you selected.

I spent most of my day digging into to Sonar and just learning it. To be honest, the more I learn how to use it, the less I am starting to like about it. That's because the features I'm exploring it seems like their implementation isn't fully developed. This open in wave editor is a good example. Try this feature out in Acid or Vegas, and you'll see what I mean. Don't get me wrong, Sonar has a lot of features that Acid and Vegas doesn't have and that's ultimately why I'm making the switch, but some that are common just seem incomplete in their functionality.