The PlayStation Network (usually abbreviated as PSN) is a service and operating system ran by Sony Computer Entertainment as an online feature for the PlayStation 3, 4, Portable, and Vita. A PSN account is required to buy and download PSN media. The PlayStation Network also has a discount system called PlayStation Plus, which a user can buy to get discounts on various media.
The PlayStation Network has many types of media. The PSN has PS classic games, PS3/PSP/PSV games, shows, movies, wallpapers, and themes. Usually, all media costs a certain amount. A minimum charge of 5 USD must be purcashed if the media price is lower than 5 USD.