How do Disk Images work?

Discussion in 'Mac Basics and Help' started by mr.stinki, Mar 12, 2008.

  1. mr.stinki macrumors 6502

    Jan 25, 2008
    I don't get how they work. Can someone please explain?

    I know that they act as a virtual disk, and stuff though.
  2. TEG macrumors 604


    Jan 21, 2002
    Langley, Washington
    Disc images are nothing more than a file that discribes a file system and stores files, with links to the file system. Sometimes compression is used to reduce the overall file size. When you open it, a new fake disk is created in RAM and the files expanded to their original size in the position they are linked.


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