Allow me to quote Dr. Martin Luther King, Jr.:
"Sometimes a law is just on its face and unjust in its application... I hope you are able to see the distinction I am trying to point out. In no sense do I advocate evading or defying the law... That would lead to anarchy. One who breaks an unjust law must do so openly, lovingly, and with a willingness to accept the penalty. ...an individual who breaks a law that conscience tells him is unjust, and who willingly accepts the penalty of imprisonment in order to arouse the conscience of the community over its injustice, is in reality expressing the highest respect for the law."
No stranger to his word, Dr. King wrote this in 1963 from the Birmingham Jail. Are you willing to go to jail, should you get caught decrypting your DVD's for personal convenience?
I am unsure if I am; after all, nobody forced me to buy my DVD's--along with the attached strings--in the first place. Hence I've sold off all my DVD's and committed to never buy or rent them again as long as the DMCA stands. I also donate money to the Electronic Frontier Foundation (eff.org) because I know they fight against these unjust laws. However, I wear a T-shirt that has the DeCSS DVD-decryption code printed on the back. That is my human expression of free speech. Should someone arrest me for wearing it, I'll gladly suffer whatever punishment I'll get, lest fellow Americans may notice what's happening in their own country.
I am not entirely selfless, either. I use Napster to sample songs, not all of which I intend to buy (although I always buy what I really like). In other words, I don't morally recognize the present copyright law. Accordingly, I am completely willing to go to jail over this. But then you won't hear me whining how the law was enforced too stringently--there is no such thing. Only just and unjust.