CD are good for holding data whatever it is. Digital could be accidentally erased or in case of a cloud data storage being inaccessable, you could have it on CD as a back up. I don't think they are done yet.
Believe it or not, lobster and crabs are crustaceans and are a part of the arthropod family, which include caterpillars, cockroaches, and spiders!
A Galactic Funking Hunt Wit Not Wont