How Recovery Data From Corrupted DMG File – A Quick Solution

Approved By Aswin Vijayan

Published On May 4th, 2022

Reading Time 3 Minutes Reading

The DMG file is a disc image format introduced by Apple. This file is a single disk image file used by Mac operating systems to store a disk image followed by optional encryption and compression. Many users generally use this file to store important data so that their analysis and forensic expertise can reveal a lot of hidden evidence. This file is important from digital surveillance of Apple computers and can provide useful evidence. These images can also be provided as volumes for direct access to data from the current operating system. The following segment describes how recovery data from Corrupted DMG File using a simple method.

Challenges to Open Damaged DMG File

Compressed or encoded DMG files are read-only files and are generally not supported by file inspection applications.
Unallocated space is not available for compressed DMG files, so parsing these files can be difficult.
Also, encrypted files are not supported by most third-party tools, which may encourage researchers to work with encrypted files.
Most desktop researchers use Windows because they have a better and more convenient operating system. DMG files are not supported on Windows, however, so researchers may have trouble inspecting these files.
It is important to recover data from corrupted DMG files for further analysis as the deleted data can provide important evidence.
To fix all issues it is important to Open DMG data File with third-party software such as DMG file Opener. This utility is a Windows-based utility that supports the Apple DMG file format and allows you to view and open damaged DMG file on Windows machines.

Recover Data From Damaged DMG File via Freeware DMG Extractor Utility

The utility is designed to display the DMG file data, which allows viewing the encoded DMG file and recovery of EML, EMLX and MBOX from the Apple DMG data file. This tool does not have a built-in option for exporting the data and supports limited file formats to display the data from the DMG file. The steps below can be followed for open corrupt DMG files;

1: Download and configure the application and launch it. A pop-up window like the one below will open with the scan option in the menu. Click on the Scan option.

2: Use the filter option to select a specific file from EML, EMLX and MBOX. You can also select All to select all file formats.

3: Click Browse to navigate to the location of the DMG file. Once the location is specified, click OK. This starts the scan and displays a message when the scan is complete.

Displaying Complete DMG files Data

4: The complete hierarchy of the DMG file along with its data will be displayed once scanning is completed.

5: To recover data from corrupted dmg files, users can click preview to view a particular file from the list on the screen.

6: Certain emails or files can be viewed in different views by clicking different tabs like; Normal, Hex, Properties, Message Header, HTML, RTF or Attachments.

There is an advanced search option to view data belonging to a certain date range

Deleted items are marked in red colour and can be viewed for further analysis.

In this way, researchers can investigate open damaged dmg file and the Apple recovery data from corrupted dmg file using DMG Extractor. This is a freeware application and supports all Windows versions. The software supports the recovery and display of permanently deleted files from DMG image disk files. It also supports compressed or encrypted DMG files that support forensics.