The Motion Picture Association of America adopted a film-rating system.  Also, according to their Website, each week law enforcement around the world catches movie thieves red-handed.  Since last year, authorities have seized over 81,000,000 counterfeit DVD's.

Quoted from Answers.com: "In some jurisdictions a rating may impose on movie theaters the legal obligation of refusing the entrance of children or minors to the movie.  Furthermore, where movie theaters do not have this legal obligation, they may enforce restrictions on their own.  Ratings are often given in lieu of censorship.  There is often debate as to the usefulness, strictness and enforcement of such systems.  People may like content with a high rating.  This includes children who may like to see content considered unsuitable for them (forbidden fruit phenomenon)."

I don't see why they're bragging about destroying blank media.  Sure, it could be used to create an equal number of pirate CDs and DVDs but it could also be donated to some cause if the manufacturing quality was of sufficient grade.

On the front page of the MPAA website, the top two stories under Latest News talk about blank media being seized and destroyed.