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  • Data Recovery from Apple Disk Images (.DMG files)

Apple Disk Images are files (usually with the .DMG extension) which the Mac OS X operating system uses to store disk images, with optional data compression and encryption. Such images can be mounted as volumes to access stored data directly from the operating system.

Apple disk images are mostly used for software distribution over the Internet, but Mac OS X users can create images of their own disks. And sometimes data recovery from such images is required. This brief article explains how to use R-Studio for this task.

Note: We assume that the Apple disk images themselves are good and mountable, only data in the imaged disks may be corrupted or lost.

R-Studio for Mac
1. Double-click the Apple disk image file to mount it.
Mounted Apple disk image in Finder
Fig.1. Mounted Apple disk image in Finder
Click image to enlarge

2. Locate the mounted Apple disk image in R-Studio.
Apple disk image in R-Studio for Mac
Fig.2. Apple disk image in R-Studio for Mac
Click image to enlarge

You may work with this image as it was a real disk.

R-Studio for Windows and Linux
Although there are several programs that can transfer files from Apple disk images to Windows and Linux systems, they cannot provide access to them at the level necessary to recover data. So we need to use a Mac computer to mount the images and then use network data recovery to allow R-Studio for Windows or Linux work with the mounted images.

1. On the Mac computer, double-click the Apple disk image file to mount it.

2. Run R-Studio Agent for Mac. See R-Studio on-line help: R-Studio Agent for Mac for details.

3. Connect R-Studio to the Mac computer. See R-Studio on-line help: Data Recovery over Network for details.

4. Locate the mounted Apple disk image in R-Studio.
Apple disk image in R-Studio for Windows
Fig.3: Apple disk image in R-Studio for Windows
Click image to enlarge

Apple disk image in R-Studio for Linux
Fig.4: Apple disk image in R-Studio for Linux
Click image to enlarge

You may work with this image as it was a real disk.

Mac Recovery Feedback
25 feedbacks
Rating: 5.0 / 5
Consiglio vivamente, R Studio Mac è un programma eccezionale, grazie ad esso sono riuscito a ricostruire un Raid 0 (striped) e ho recuperato 4 TB di files che credevo persi. Avevo provato anche con altri SW ma senza risultato!! Grazie
Made the classic mistake of working too hard with too little sleep. Working on my own stuff so I didn`t take the precautions I should have.

Needless to say a RAID0 set created using Apple`s Disk Utility was broken and formatted as a new RAID0. I immediately recognized my mistake and shut down the server.

After some web surfing and saki I found R-Studio.

After the other utilities I normally use failed, R-Studio was able to create an image of the broken (and reformatted) RAID disks.

The entire volume ...
5+ Я мог восстановить RAID-5 20TB для мака. Это пожалуй лучшее решение по восстановлению RAID массива. Всем рекомендую.
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5+ I was able to repair my RAID-5 for Mac volume to 20 TB - it`s the best solution. I would recommend.
Hi
I would just like to thank you for an excellent product. I was able to recover nearly a terabyte of data after a raid 6 array failed. My customer was ecstatic over the results
Your datarecovery software (for Mac) turned out to be a genuine diamond. It recovered a complete partition within a total of only 1 day! I`ve tried 2 other software solutions before I read of yours and they both were unable to recover the original file structure and filenames (without crashing). Your software delivered with a very low load on my Mac and it recovered the complete file structure. It`s worth every penny and I highly recommend it to anyone who accidentally lost data.