Yes, I did a completely blind test. I had someone else run the controls and I sat back and guessed. I didnt have a very high success rate with pop music, but my high success rate with jazz and classical music more than made up for it. But even having done a blind test i understand thay my opinion is still just that, an opinion. If people havent been encoding 24-bit wav files to .mp3 that is their problem (Most people probably encode mp3's with musicmatch or something anyway). They should be
Below are some visual comparisons of MAD at 24-bit dithering, 16-bit dithering, and Fraunhofer at its limit of 16-bit). Also,below are the results to someone elses MAD blind test.
http://www.ff123.net/dither.html
http://www.ff123.net/madchallenge.html