There is one, in the sense that the law states you cannot use the digital contents any way you like - you can only use the digital contents for your own persona

There is one, in the sense that the law states you cannot use the digital contents any way you like - you can only use the digital contents for your own personal, home use. However, the physical disk is protected by First Sale Doctrine. You can sell it, rent it, auction it, destroy it, whatever you want. The same applies to, say, your laptop. You can do whatever you physically want to your laptop, even if you can't copy your Windows license wherever you like.