Truth be told, only the people who used the older programs actually notice the difference
when dvd shrink came out, most people quit IC (instant copy) because it was almost as good, but way faster
before then their was dvd2one, which was as fast as shrink, but the picture was horrible. (funny thing. A lot of people claim to not notice the difference on that too. But you had to be brain dead not to notice the difference with that program. it was barely better than vcd)
back then, you use to have to choose between speed or quality. dvd shrink did away with that because it just as fast as dvd2one and the picture quality is almost as good as InstantCopy. Everybody could live with that tradeoff
By the way. when I use dvd shrink if the movie is between 5 to 7 gig long, I always use deep analys (remember I was use to the 24 hr conversion, so time doesn't bother me), and I always do do movie only with only 1 language, because I have no need for any of the extra stuff.