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.DMG File Extension

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File TypeMac OS X Disk Image

DeveloperApple
Popularity
4.2 (337 Votes) Thanks for voting!
Rare Uncommon Average Common Very Common
CategoryDisk Image Files
FormatBinary

Binary

This file is saved in a binary format, which requires a specific program to read its contents.

Definition

Mountable disk image created in Mac OS X; contains raw block data typically compressed and sometimes encrypted; commonly used for Mac OS software installers that are downloaded from the Internet; mounts a virtual disk on the desktop when opened.

More Information

The DMG format replaces the older .IMG file format used in Mac OS Classic. DMG disk images can be opened using the Apple Disk Utility that is bundled with Mac OS X on Apple computers.

DMG files are Mac-specific and are not intended for use in Windows. However, Windows Daemon Tools may be able to mount virtual drives from some DMG image files. Other utilities may also be able to convert DMG files to a format that can be recognized by Windows.

Program(s) that open .DMG files
Microsoft Windows LogoWindows
7-Zip
PeaZip
Acute Systems TransMac
Catacombae HFSExplorer
Reincubate DMG Extractor
DMG2IMG
DMG2ISO
Mac OS X LogoMac OS
Apple Disk Utility
Roxio Toast 14
Incredible Bee Archiver
Catacombae HFSExplorer
Linux LogoLinux
Catacombae HFSExplorer
Updated 5/16/2014