I have updated the list and done a quick count. Frodo is to save the ring on 28 boxes and destroy it on 13.
Lembas Eater, I guess you are like most (including myself) who read what we believed not what we saw. I must have read the blurb 10's of times before it sunk in about Frodo 'saving' the ring, and that this went against the whole concept of LOTR.
I had to read it several times more before I was convinced I had understood it correctly and that this error was indeed a major error, and not just me misinterpreting the sentence.