sentences:  Users may also add certain EA games to their Origin account by using CD keys from retail copies, and digital copies obtained from other digital distribution services.However, the addition of retail keys to Origin is restricted to games from 2009 onwards and older keys will not work even if the game is available on Origin, unless user contacts customer support.The Origin client is self-updating software that allows users to download games, expansion packs, content booster packs and patches from Electronic Arts.