missing CD product key

Is there hope for me if I lost CD product key, never able to register product online, but still have original CDs, for Dragon Age origins ultimate edition, and still have the unused product key for the additional content packs which required online access?

Had downloaded Origins on another computer, the hard drive had died so I didn't play past intro, and I had not registered as at the time, I lived in area with no internet.  I would like to play game but not to the extent that I want to pay again for something I already bought.  No product key on CD or game case, so it must have been on something else.  Can't remember if game came with a booklet or what.

Is there a CD check DRM function that will work via internet?

The product key for the original, physical box, retail disc version of DAO is printed on the back of the manual at the very top. It's a 20-character code, (5 groups of four.) If you never registered the game with BioWare or EA, and you don't have that code, then you're out of luck.

(Anyone can use the discs + code to get the game installed, then pass/sell the discs to someone else. So having the discs themselves is proof of nothing.)