I guess it had to happen at some point; SlySoft offered decrypting software that could be thought of as the standard when it comes to allowing users to rip DVDs and Blu-rays. AnyDVD had a subscription-based service a huge customer base and their support forums were always active with people willing to help.
The immense popularity of SlySoft was driven by the fact that digital copies of popular movies were not available. At one point, the movie studios were trying to push a service called Ultraviolet, but that was a huge mess and highly disappointing.
From my perspective, I think that SlySoft is one of the reasons that other companies and software packages [Kodi and Plex] have become so popular by managing people’s movie libraries. Without applications like SlySoft AnyDVD/AnyDVD HD, many people would not be able to enjoy the movies outside their homes, and it still be taking those little round pieces of plastic and shoving them into a machine to be played.
At a point in time where services like Netflix, Hulu and other streaming services are becoming extremely popular, it makes absolutely no sense to continue using DVDs or Blu-ray discs.