There is two distinct parts to the DMCA that is at play here, the first being circumvention. I do not believe there has ever been a case brought against and individual with regards to circumvention, i.e. ripping a CD, DVD, or Bluray etc.
There have however, been cases brought against individuals and companies for the second part, which makes it "illegal to manufacture or distribute circumvention tools". I personally think if all you are doing is making a "personal copy" for yourself then there is no way the RIAA/MPAA etc is ever going to bring a case against you since they are clearly aware that they benefit from the fear that is created by the ambiguity in the law.
As to one of the previous posts, I believe what the poster was referring to was a change made earlier this year. Which now makes circumvention legal in some cases.
What's New : OGC.