I found it out not from a news item-I saw in on a ROM site,I can't remember which.
My memory can get foggy,and that is shocking to me,because,I'm 14,for God's sake.
The context was something like this-
"These games are copyrighted-you may only keep the ROM if you own the official cartridge. Otherwise we encourage you to delete these within 24 hours."
It's perfectly sensible-you own the cart/CD/card,you should have rights to the ROM of the game.