Optical disc images are files storing complete copies of various media, including CD, DVD and Blu-Ray discs. They are used for backing up data from optical discs and creating exact disc copies for further replication. The main advantage of disc images is that they are essentially exact sector-by-sector copies of original discs preserving both their content and structure. If you have a disc image in any format, you can easily recreate the original disc by burning the image to a blank CD, DVD or BD disc.
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