If you’re looking to play CDs on your PlayStation 4, there are a few things you’ll need. The first is a CD player, which you can buy or rent from most convenience stores. The second is the PlayStation 4’s optical drive. You’ll also need a copy of the PlayStation 4 game “Cities of the Future” and an ISO image of the game’s disc. To play CDs on your PlayStation 4, first make sure that your optical drive is compatible with PlayStation 4 games. If it isn’t, you can buy one from Amazon or other online retailers. Once your optical drive is compatible with PlayStation 4 games, insert the disc into the drive and press “Play.” If you have “Cities of the Future” on your hard drive, it will automatically start playing when you insert the disc into the optical drive.