Daemon Tools is a software application used for creating virtual disk images of physical CD, DVD or Blu-ray discs, and for mounting these virtual disks on a computer system. It is commonly used by software developers, video gamers, and computer enthusiasts who need to access and use virtual disks on their computers. The software offers various features, including the ability to create and edit virtual disks, manage multiple virtual disks simultaneously, and emulate different types of disk formats.