PS4 libraries can be accessed from any console

Those who own digital games through PS4 will be allowed to play those games on any machine as long as they are logged into their account, according to Sony R&D senior team leader, Neil Brown, using the PlayGo System.

Speaking at Develop, Brown said players can begin the download and start playing "at least the first section of the game" as it continues to download in the background - much like Sony outlined when the console was announced back in February.

“You can visit your friends house you can log into your account and play any game from your digital library, which is good. But how useful is that if it takes half a day to download the game you want to play? With Play As You Download you get much quicker access to at least the first section of the game so you can start playing quicker. So this makes a digital library a practical option in the real world," he said to OPM.

“A similar system also works on Blu-ray, chunks are automatically copied to the hard drive in the background. This means that after the first few minutes your game can rely on having faster read speeds from the hard drive. Which provides a better experience for players, and this is a completely background process for the player.

"They don’t have to wait for anything to install before playing the game. The game will launch as soon as the disk has been put in the drive.”

PS4 is slated for release this fall.