Just as a note, even though the great and mighty Adobe promised a Reverse command in Soundbooth for the CS4 release (and didn’t make it), they have also overlooked the command for the CS5 release. I brought the audio clip I wanted into Adobe Premiere, and was able to reverse the audio just fine.

As another note, Audacity, a free, open-source software, has the same command function, and has had it from the start.

 

And I added a new category to my blog: App Scorn.  Where software lacks in promised functionality, I will post!