My position is that if I copied a the files and gave them to someone else, or posted them on the web, I would clearly be in breach, although I am unsure if I could / would be prosecuted.
If I sold them to another party than I certainly could and probably would be prosecuted.
If I put them in my second boat (I don't have one bug enough
!) then I would be in breach but sincerely doubt a prosecution would hold.
But to copy to put a second one in my single RIB, so I have a backup - essentially a repeat - of the map on my small screen in easy sight of the helm, with the big map for the navvigator - it is hard to argue that is a breach and it certainly seems unprosecutable....