An ISO is a disk image file that contains all the data from an optical disc, such as a CD-ROM, DVD, or Blu-ray disc. ISO images are often used for backing up optical discs or for creating virtual discs that can be mounted and used by a computer’s operating system.
There are a few ways to tell if an ISO is a PS2 or PS3 ISO. One way is to look at the file size. PS2 ISO files are typically around 4GB in size, while PS3 ISO files are typically around 8GB in size. Another way to tell is to look at the file extension. PS2 ISO files typically have the file extension “.iso”, while PS3 ISO files typically have the file extension “.ps3iso”.