Install locates the damage and gives you code encoding locations. Over the phone You receive ECC code. No more magic keygens, pirates have to distribute whole multi megabyte games.
Of course there are voice that do want real disks but sadly that time is over. Digital sales won.
Like 15 years ago Steam launched CEG (Custom Executable Generation) - I remember reading a write-up a while ago, but each user had a customer launcher generated on install I think, and I think there was an extra segment put into the .exe file and that was put to use somehow, though I don't know if CEG is still a thing.
CEG is long dead/was broken immediately in a pragmatic, automatable way.