Many have heard about iso technology, but not everyone knows what it is. Iso-disk image is a file that contains a complete copy of cd or dvd media. The most widely used disk images are among computer game lovers. Still, it would thus be much easier to copy the working installer of the game. In addition, operating systems are distributed on the Internet also in iso-images. In other words, by creating a disk image,you recreate its clone on the hard drive, this will in most cases run a game that requires the constant presence of the disk in the drive of your computer. Of course, many will say why bother with the question of how to create an iso image, if you can do with regular copying. But I want to say right away that some installers copied in this way simply will not function.
Around a similar scheme, work proceeds in paid analogues, but they have a lot of additional settings that allow you to perform various operations with images. But as noted above, most ordinary users do not need these functions, but only complicate the work with the program.