Some day you may owe a debt of gratitude to Jon Johansen.
Johansen wrote DeCSS a little piece of code that cracks the encrpytion on DVDs and which got him and others in a lot of trouble with Hollywood. An appeals court in Norway has upheld a lower courts not guilty verdict in a piracy case brought by Norway’s Economic Crime Unit largely at the behest of the film industry.
The legal issues involved are complex, but the fair use doctrine (steming from the original lawsuit against Sony over the BetaMax) has been quitly under attack by the entertainment industry for years. If they succed your ability to backup legally purchased materials for your own use would be made a criminal act.
See the PCWorld article for more details on the decision.