> - I will download the websites on 3-4 occasions this
> year. 
> - I want different packages each time so I will not
> be updating the earlier package.
I suggest you make a copy of the mirror and then Update the mirror. No sense
redownloading files that have not changed.

> * I have an inkling that perhaps the new.txt file
That's unique.
> 
> * I am wondering about the "new.lst", what kind of
> file is this and can it be removed? 
Text file with other data.

> * It is my understandning that the "new" zip-file is
> only of use if I want to update the mirror. In my
Remove them from the copies, keep for the next Update.