Honestly, I'm not sure why people have left negative feedback for this product. It amazes me really. Personally, I don't have much use for a product like this since I am single, don't have children to damage my DVDs and certainly want to purchase honestly what I use. However, I have a very good friend who has EIGHT children and was sometimes replacing damaged DVDs at an alarming rate. Since he is not computer savvy, I tried to help him come up with a solution.
I read reviews here and decided to go with a different option, which proved to be quite difficult. First it took two programs to accomplish the task. The first involved sending Swiss francs to some cantankerous individual named GetterButz (I think) for a program called MacTheRipper. Even after receiving my friend's money, GeeterButz made him jump through hoops, addressing email a certain way before responding, etc. to get his serial number. I could go on and on about how difficult it is to deal with GeeterButz; but what's the point. Suffice it to say, all was finally resolved and the program worked OK but not nearly as intuitively or conveniently as Fast DVD Copy. However, there was never any notification of updates. Again it was a hassle to get any upgrades from Mr. Butz.
Secondly, a second program is required to actually burn a copy of a DVD made with MacThe Ripper. Therefore, my friend had to purchase Popcorn, which is fine since it is from Roxio. Altogether though the investment was more than this program and produced no better results. Needless to say we finally gave up on dealing with the mysterious Mr Butz and bought this program.
Fast DVD Copy works as advertised. It both copies the DVD and burns the archive copy from a single program. After having burned 25-30 archives of my friend's legally purchased DVDs, we have yet to make a single failed copy. (Of course, we used high quality Verbatim discs.)
The only reason I can think of that people would give this program a negative rating is that they are cheap. Yes, it's $100; but as I said, it's really no more expensive in the long run than the other solution and so much more convenient. Spend the $100 if you need this; and use quality DVDs for your archives. You won't have a problem.