With the file extension ISO CD / DVD / HD-DVD / BluRay images (images) are marked .. These contain the complete image (data and structure) of a CD / DVD / HD-DVD / BluRay and can also back to an optical disk be burned. ISO is a standardized format derived from the ISO 9660 standard for CD file systems. However, the ISO file may also contain data in an extended form of this standard, such as e.g. UDF included.
Several types of programs can handle these files. Programs that provide virtual disks (such as Daemon Tools) and burn programs that write the data to an optical disk. Also, many programs can open and unpack standard ISO files. Special applications (eg ISO Buster) that can manipulate the contents of an ISO file are also available.
In Windows 7, a program called isoburn.exe is included that can burn ISO files.
Most often resolving problems with opening ISO files is very simple. Just install an appropriate program that supports such files. All of the listed programs support ISO files, but may vary in offered function and purpose. Some programs may be capable only of viewing contents of ISO files or offer file conversion options, but may not be capable of editing such files.
It is possible that although a compatible program has been installed on user’s system, it is not used by the system to open it. This may happen because no default application was associated with this type of files. To associate ISO files with given application, select "Open with" from drop-down menu (accessed by right-clicking on the file). Then select from the list the program or application you want to be used to open this type of file. If the Apple Disk Utility applications is not on the list, select "Browse" option in order to manually locate the directory where Apple Disk Utility has been installed.
Sometimes problems with opening ISO files may not lie with the application itself, but can arise due to other causes, such as: