I've found that when a recording is made in an actual acoustic environment, dithering isn't necessary because the natural noise floor serves as a dither. Does anyone else share that view? I quit using dither when I found that the noise it adds is often audible. I use Waves L1, which does have fancier types of dither that are inaudible, but the user is cautioned to make sure that the program is never re-dithered or else there may be audible artifacts. Of course, a recording made in an abstract setting such as digital reverb fading to silence absolutely must be dithered, but that's the exception in most of my recordings.