Well that sucks.
And I'm one of those folks who owns every DVD and BD disc that I have ripped to my NAS.
I actually purchased more movies then I would have otherwise since being able to rip them made watching them so convenient.
While I try to keep my physical discs organized the kids/guests/etc mess that up, take them to their own room, etc. Just having to track down some misplaced disc was enough to cause me to skip watching it.
I really find it hard to believe the number of folks using AnyDVD cost that many sales.