These content manufacturers and their copy protection is plain stupid. The cause of piracy is too high of a price and too low of a re-watchable value of the movie (or too little good song on a CD).
IIRC the development and implementation of Macrovision, ARCCOS, CSS, anti-theft security tag (one tag for 2 versions of security systems) cost about $2 per DVD. If they use that money to lower the price of DVD instead, we'll be seeing more sales jump (don't forget that $2 cost at the manufacturing level means about $4 jump at the retail level, plus taxes, which makes a price difference of almost $5). Imagine those bargain basement movies that are selling for $12 can be had for $8. Who's going to pirate anymore? (The cost of a home-pirated DVD is the cost of rental, electricity, time to exctract and recompress/reauthor, blank media, DVD case, ink, photo paper to print the artwork, is approximately $8 if not more)