.ISO ファイル拡張子

An ISO file is a CD or DVD data image that contains the exact copy of a physical CD: data, file system information, directory structure, file attributes, and boot information. Disk images are very useful for making copies of CDs and DVDs. When creating an image, every bit of the CD is copied to match the original media. Simply copying files from CD or DVD to your hard drive will result in losing track information, disc titles, and boot information. From an existing disc image, you can later easily restore the original version of the copied CD.

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To understand in more detail what an ISO file is in the digital world, it is enough to imagine the contents of the CD, namely the various information about file systems and file attributes, as well as directory structure and boot information. Disc image is common in the field of making copies of CDs or DVDs. In the process of creating the disc image, literally every bit of the CD is copied to match the original media. With an existing disc image, it is possible to comfortably restore the original version of the CD that was copied earlier.