.DMG File Description

Mountable disk image file created in Mac OS X; opening the image file will mount a virtual disk on the Desktop; commonly used for software installers downloaded from the Internet.

The DMG format replaces the .IMG file format used in Mac OS Classic and is not compatible with Mac OS 9 and earlier; DMG disk images can be opened on Macintosh computers using Apple Disk Utility, which is bundled with Mac OS X.

DMG files are Mac-specific and are not meant to be opened on Windows; however, Daemon Tools may be able to mount some DMG images files as virtual drives; other utilities may be able to convert DMG files to a more standard format that can be recognized by Windows.

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Other Information For .DMG File Extension

• Company:

  Apple Inc.

• File Type:

  Macintosh OS X Disk Copy Disk Image File

• Identifying Characters (Hex):

  78

• Identifying Characters (ASCII):

  x