File Extension DMG

.DMG File

File extension: DMG
File type: Disk Copy Disk Image File
Do you have speed issues?
First check your registry for invalid entries.


Notes about the DMG file extension:



Incorrect file associations could be the result of underlying issues within your PC system. As such it is highly recommended to scan your PC for invalid registry entries, unused processes and other unfavourable system settings to identify slowdown issues.

The DMG file type is primarily associated with 'Macintosh OS X' by Apple Inc.. On the Macintosh, these files are treated like a real disk. They can be created with Disk Copy, burnt to CD or mounted as a normal volume. If you have a .DMG file on a Windows PC it's likely you have a Macintosh file and you won't be able to use what is in it. Some sites distribute for the PC in an .EXE file and for the Mac in a .DMG file; make certain you have the version designed for your system. On a Windows PC the dmg2img program will convert a .DMG file to a standard (hfsplus) image disk file. On Windows, a fairly complete filesystem driver for HFS+ exists as a commercial software package called MacDrive. Note: You have to run the dmg2img program at a command prompt. DMGs can be password-protected and, if so, may not be mountable by some software. The DMG file also comes in different formats: HFS, HFS+, UFS, ProDOS, Linux, and Fat32 and so may also require special mounting software to account for the format. IsoBuster can interpret these files directly as can other programs such as UltraISO. The program TransMac, by Acute Systems, can both open and create DMG files on a PC.

Detailed information for file extension DMG:


Primary association: Macintosh OS X
Company: Apple Inc.
Mime type: application/x-apple-diskimage
Identifying characters Hex: 78 , ASCII: x
Related links: dmg2img / dmg2iso, IsoBuster Data Recovery Tool, FILExt Forum DMG Thread, TransMac, MacDrive

Other applications associated with file type DMG:

File Identifier - TrID
'Identifying characters' used on FILExt.com are
provided by Marco Pontello from his TrID database




Important: Invalid file associations could be the result of underlying issues within your Windows PC. It is highly recommended that you scan your PC for invalid registry entries, unused processes and other slowdown issues.

Technical data

To view technical data on file-extension DMG click this link to expand/hide the additional area.

System Info for File Extension .DMG

The following listing is compiled from the database produced by the 'Associate This!' program, selected data from the main FILExt database and information FILExt collected directly from user systems.

ProgramID: DMGFileImage
EXEFile: %ProgramFiles%\Smart Projects\IsoBuster\IsoBuster.exe %1

ProgramID: IsoBuster.dmg
EXEFile: %ProgramFiles%\Smart Projects\IsoBuster\IsoBuster.exe %1

ProgramID: UltraISO
EXEFile: %ProgramFiles%\UltraISO\UltraISO.exe

ProgramID: IsoBuster.dmg
EXEFile: %ProgramFiles%\IsoBuster\IsoBuster.exe

ProgramID: MagicISO.Document
EXEFile: %ProgramFiles%\MagicISO\MagicISO.exe

ProgramID: DMGFileImage
EXEFile: %ProgramFiles%\_CDvD\IsoBuster\IsoBuster.exe

ProgramID: 7-Zip.dmg
EXEFile: %ProgramFiles%\7-Zip\7zFM.exe


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