Re: not yours
"You can certainly argue that having a legit disc copy gives you the right to do whatever you like with that disc, within reason - including, for instance, putting it into any kind of disc reader of your choice. But to claim that it gives you the right to make another copy of whatever work happens to be on that disc - is pretty much the opposite of how copyright works."
Veti in the US you have the right to make up a back up copy. section 117 of the Copyright Act.