How many bloody times do I have to repeat myself "don't worry, be happy"
Here is the logic:
DO YOU HAVE ANY PROBLEMS NOW, I repeat,
DO YOU HAVE ANY PROBLEMS NOW?
Answer, NO, NO, NO, NO X 10000 times !!!
So, use DVD Decrypter until it is no longer working for you, then you look for something else.
BTW, many posters here prefer paid programs for speed and/or support, and/or user interface and/or because they like the program, so paid program is a solution, if it makes you less worried, by all means, purchase one.
WHAT PROBLEMS DO YOU HAVE NOW?