Whenever you see “Permission Denied,” and “Are you root?” it means the command needs to be executed with elevated (ie. administrator) privileges. Simply hit the up-arrow on the keyboard to bring back your last command, use the left-arrow to go to the beginning of the command, and add sudo to the far left. Then hit Enter.
I think I have this same DVD writer. Works great with Linux Mint, right out of the box. (Mint can be installed with all the necessary multimedia codecs by default.)
Is it maybe not a good idea to log in as root, especially as a new user could cause some unintended consequences if they don’t understand what they’re doing? Better to just use the sudo command when needed. It elevates privileges for only a short time.
You have to first have the DVD writer to be able to rip them. 
Anyway, I still physically play them in the multi-region DVD player attached to my TV/audio receiver setup. (I need the writer to make copies of my CDs, also, so I can load them on my phone, computers, music players, etc.)
The major film studios probably disagree. However, I disagree with their disagreement.