williamcopper
I had gotten to trust Soundforge, but in the 'save as' dialog, as far as I can see, there is no dither option. Since 16-bit is necessary for CD burning, I had used Save As -- but now I know better. No help, that I found, in Help, either.
The thing here, I suppose, is that car manuals don't teach you how to drive, if you see what I mean. Sound Forge has two different tools for applying dither when changing bit depth, both of which have various options. And typing "dither" into the help will indeed take you to help topics about how to use both of them.
What it doesn't really do is teach you what that is, why you'd do it, or when you'd do it. Sound Forge and Sonar are tools, not teaching aids. Sonar does come with a bunch of tutorial and educational content, but really, the main job of the documentation is "How to use Sonar" not "How to do sound engineering".