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Thread: ISO Files

  1. #1
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    ISO Files

    I don't understand the value of ISO files. It seems to me just using a normal file suffix would be more convenient. They seem to be treated like zip files but I recently made and iso file of many mp3 files and it increased rather than decreased the size of the folder. Any thought on this?

  2. #2
    4 Star Lounger SpywareDr's Avatar
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    Wikipedia: ISO image
    An ISO image is an archive file of an optical disc, a type of disk image composed of the data contents of every written sector of an optical disc, including the optical disc file system.[1] ISO image files usually have a file extension of .iso. The name ISO is taken from the ISO 9660 file system used with CD-ROM media, but what is known as an ISO image might also contain a UDF (ISO/IEC 13346) file system (commonly used by DVDs and Blu-ray Discs).

    ISO images can be created from optical discs by disk imaging software, or from a collection of files by optical disc authoring software, or from a different disk image file by means of conversion. Software distributed on bootable discs is often available for download in ISO image format and, like any other ISO image, may be written on, or "burned" to, a CD or DVD with any capable software.

    There is no standard definition for ISO image files. ISO disc images are uncompressed and do not use a particular container format; they are a sector-by-sector copy of the data on an optical disc, stored inside a binary file. ISO images are expected to contain the binary image of an optical media file system (usually ISO 9660 and its extensions or UDF), including the data in its files in binary format, copied exactly as they were stored on the disc. The data inside the ISO image will be structured according to the file system that was used on the optical disc from which it was created.


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  4. #3
    Silver Lounger
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    They work very well for certain purposes. Make an ISO of a installation DVD or CD and the physical media can be saved (or lost) as a emergency backup, while the ISO can travel electronically from system to system, globally maybe and be recreated exactly, millions of copies perhaps from one original ISO. Also, those copies don't need to be reconstituted; they can remain ISOs and be mounted in virtual DVD/CD drives, again obviating the need for physical media.

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    Motiger (2013-07-06)

  6. #4
    Plutonium Lounger Medico's Avatar
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    ISO files can be burned directly to DVD very easily for those of us that wish to save the file, both digitally and with physical media. If you right click an ISO file (with Win 7 or Win 8) you can choose to Burn Disk Image. This is especially useful for creating BOOTABLE installation disks. For example if you download a Windows ISO file, and burn it to DVD, then if your OS becomes corrupt and you have to reinstall the OS, you can just pop in the DVD, let it boot, and start the installation from scratch. For earlier versions of Windows (XP I believe) you would have to use a 3rd party app to burn the ISO file to DVD.
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