Jan 22, 2009 02:05 pm If you want to actually *hear* what the dithering is doing, render a low-level signal (something around -60dBRMS) through several types of dither.
Obviously, it's going to take fairly severe gain to actually clearly hear what's going on after that... But as long as you load them back in and the DAW is throwing calculations in 32 bit (or higher) you'll still get a decent representation of what's happening.