Quote Originally Posted by Ooshima View Post
Mine is the FF14 1.0 collector's edition and I registered it without issues and received my collector's items.

It was sold out for ARR PC at the usual game store I patronize, but the storekeeper told me that he had left over stocks of 1.0 which can be used so I bought it.
I can confirm that 1.0 keys do work as i had an unopened CE 1.0 that i used and registered as well without issues when ARR went live.