How To Open ISO Archive

An ISO file is what’s called a disc backup - an exact copy of a CD or a DVD disc. ISO images are typically created as disc backups, but they can also be made “from scratch” using a specialized editor like WinISO. An ISO image can only store a single track of data, so it doesn’t work for music CDs and a few more arcane disc types.

It may help to think of the .iso archive like a kind of archive because it usually contains a number of files and folders. However, unlike other archives (e.g. ZIP or RAR), the ISO format saves everything in uncompressed form. Some commercial disc image formats like UIF file and .daa format also support file compression.

To extract an ISO archive you will need to install one of the many ISO image tools. There’s a multitude of applications that can open the ISO images, but most of them are either very expensive or simply lack any defining traits that would let you make an informed choice. So which one should you pick? Depending on your goal, there are two applications that I would recommend.

First, if you only need to extract the image, use 7-zip. It’s a free open-source archiver that can open ISO CD/DVD files. It will let you extract the disc image, but that’s it - 7-zip can’t record, mount or make new .iso archives. It’s a neat no-frills tool and it is available for both Windows and Unix-based computers.

If you need a bit more functionality you will probably want to invest in a full-blown ISO file application like PowerISO. Yes, it costs money, but it will let you do nearly anything with an ISO or .uif files - extract it, modify, mount it in a virtual drive, convert to a different format, and burn to a real disc. PowerISO only works on Windows, though.

To summarize, ISO is a widely known, open CD/DVD archive format that is supported by most CD applications. Some general-purpose archiving tools can also extract .iso images, but they generally can’t do anything else with them.

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