Can you guys help me with creating a new disc?

Here is what I have done so far and I seemed to have gotten lost somewhere.

I have copied the files from a known working disc for update v31 with night vision over to its own directory on my hdd.

I can open NavTweak up, Ive drilled to the navboot file. I can edit the changes I want etc etc.

I just cant for the life of me figure out what to do next.

Do I save that edited navboot file back into the directory it came out of? Do I name it as navboot?

Do I then copy all those files in that directory I created on my HDD over to a disc and burn it as an ISO?

Ive read the thread and I see instructions for burning but I cant seem to get my edited files back to an iso thats where Im getting lost.

Do I copy all of the files to a new CD or, is there a certain file that I burn? Reason I ask is because everytime I try to burn just the navboot file it says unexpected file format cannot proceed. Or something of the like.

Any help in laymens terms would really help.

Thanks!