ISO vs. ZIP/RAR

What is an ISO file? An ISO file put simply is a perfect copy of a disc (usually optical) stored in one file on the hard drive of a computer. ISO is uncompressed and contains even free space of said disc.

According to Wikipedia, “An ISO image (International Organization for Standardization) is an archive file (also known as a disc image) of an optical disc, composed of the data contents of every written sector of an optical disc, including the optical disc file system.” (Wikipedia, ISO Image, June 2011)

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