Why ISO file?
If you want to backup a bootable CD or DVD to the HDD, you must create an ISO file. An ISO image file is an exact replica of a CD or DVD, and of course you can re-copy (burn) it to a CD or DVD, and generate an exactly same DVD and it will still bootable. Backup data from CD/DVD in the form of an ISO file is easier to manage and you can also open or extract the ISO file using Winrar or 7zip.
How to create an ISO file?
Here is how to create an ISO file using the smallest and easiest software available on the internet, and most importantly, this little software is free:
Download Free ISO Creator 308KB (Download) (Mirror)
Free ISO Creator is a free ISO image file creation tool, can help you to directly create an ISO CD-image (ISO 9660, also referred to as CDFS, Compact Disc File System) file from the DVD/CD-ROM or any folders on your PC. No complicated settings and options, this software is very easy to use.
This software is completely free, the iso-9660 standard iso format file can be used in Linux/UNIX platforms. This program run with all popular Windows operating systems, such as Windows XP, Windows Vista, Windows 7 (and Windows 8), support both 32bits and 64bits platform.
Open this software > click Browse to select source folder or DVD-ROM drive > in the Volume Name type the input label of the ISO file > click Save as to set the output path and the ISO file name > click Create