This site is being deprecated.
Please see the official X‑Plane Support page for help.
I am not with Laminar Research; just a flight simmer.
The dvd version of x-plane is setup so that you have to have disc 1 in a dvd drive to run at all times. The alternative is to purchase a specific USB dongle that substitutes for disc 1. There is no password "key" used.
If you have a problem with a particular disc you should contact the reseller or developer of the dvd version of x-plane. If your DVD version is a genuine x-plane version ie not steam or from aerosoft or any other brand then make initial contact with Laminar Research at firstname.lastname@example.org
My recollection from previous questions and answers in this forum on the same subject the short answer to your question is no.
This site is no longer being actively maintained.