

Because the ISO file retained complete data information of the compact disc (including compact disc boot information), you were allowed the convenience to use commonly used CD/DVD burning software to record the disc with your CD-R/RW or DVD-R/RW over and over forever, it can also be used directly through Virtual CD/DVD-ROM drive software. Along with the large capacity hard disk popularity, people were already used to copying compact discs to CD/DVD image files, generally used is the famous ISO 9660 international standards format, therefore CD/DVD image files are called ISO files.
