In order to play the ROMs, you must insert your PS2 CD in to your system's CD-ROM drive and run the program. This PS2 emulator attempts to execute PS2 code on Windows and Linux and is developed by the same people who developed PCSX. PCSX2 is a Playstation 2 emulator for Windows which does a great job at playing back a lot of the popular titles you got addicted to back in the days of PS2 popularity. It goes without saying that the most successful console in history still has a following (that being the Playstation 2), but the amount of users still wishing to enjoy their PS2 titles has not really slowed down and since the production of the console has been stopped in order to support the Playstation 3, users with broken Playstation 2 systems might have to turn to an emulator on the PC.