AD was a version of MD with an even less realistic head IIRC. the main drawback there was that they designed a cartoon head/figure for a piece of software that, after more than 10 years now, still can't do commercially acceptable anime/manga/cartoon renders. and unfortunately there's no early indication that P7 will be able to do 'em, either. MD was very good, but I quit using it once aiko3 came it, as aiko3 is alot prettier and more shapely IMVHO