- DMG files are a Mac OS X Disk Image files. Like ISO files, DMG files are essentially disk images, which are intended to be used with the Mac operating system. The DMG files normally contain program installation files for Apple system and applications, but they can also be used to hold compressed files.
- Part 10 Best Free DVD Burner for Mac 1. Burn, while simple, is a well-known free DVD burner for Mac, and has gain wide reputation for burning files to playable DVDs. It is widely used to burn videos to DVD on Mac.
Apple delivers the macOS installer and applications through the app store since the launch of OS X Lion. The macOS installer has a .app extension when you get it through the official channel. Unlike the macOS DMG installer, which Apple doesn’t provide nowadays, the app version of the macOS install package is not bootable. Hence it is not mountable nor compatible with operating systems like Windows. For some reason, if you want macOS in .DMG or .ISO format, there is a method to convert the .app file. Unfortunately you need a macOS system to convert .app to .dmg to .iso image.
Mac Dmg Downloads
Most of Mac OSX software are packed into a dmg file, which can be mounted as a volume within the OSX Finder, thus you can install the software without using a physical disc. AnyBurn can extract dmg file, convert dmg file to iso format, or burn dmg file to a new disc directly. To burn a DMG file, please follow the below steps, 1.
Reasons for converting macOS Mojave or High Sierra .app to .DMG or .ISO
- The macOS in DMG format let to quickly create Install DVDs and bootable USB installers in a few minutes.
- When you convert macOS Install .app to ISO format, you may use it for running macOS on Windows PCs (Hackintosh).
- You can use the DMG file made from the macOS Install app for creating a boot-friendly macOS USB on Windows PC.
Above all, DMG and ISO files are highly portable; it is easy for anyone to upload and transfer them through the Internet.
Convert macOS Installer .APP to .DMG bootable image
The requirement for running macOS, and a USB Pen Drive for converting the Installer application to bootable ISO or DMG image. The step by step process for converting macOS Mojave, High Sierra, Sierra, EI Capitan to the bootable .DMG or .ISO is explained below.
- First of all, download the full Mac OS installer, and save it in the Applications folder.
- Next step is to create a bootable USB installer from macOSÂ Install app. I prefer using the macOS Terminal app to create the bootable USB Installer using commands in the screenshots.
- Now, copy the contents of the macOS USB to a new folder and give it a single word name. We are going to make DMG file on Mac from the newly created folder.
- Then open the Disk Utility app and then take the “File” menu from the top left corner. Then New Image and Image from folder, and direct the Finder to the macOS file folder.
- Choose the image format as Hybrid (HFS+/ISO/UDF).
- The system now starts converting the macOS installer .app bootable .DMG file.
Just in case you find any difficulty, check our video on converting macOS .app to bootable .dmg.
How to convert macOS installer to iso format
There are several ways to convert macOS .app to .ISO bootable image. Usually one need to do APP to DMG or CDR conversion before making it an ISO file on Mac. The Disk Utility app in macOS previously had an option that allows you to convert DMG to ISO/CDR. You can use Terminal and third-party apps to convert Mac OS installer to ISO if it is in CDR format.
AnyToISO app capable of converting macOS DMG to iso format. The free version of AnyToISO doesn’t support converting dmg files above 850 MB. Hence, you need to either purchase or download (Search AnyToISO Pro 3.9.0 in Google) the PRO version of this app.
In my experience, converting DMG to ISO with AnytoISO takes a lot of space and resources if you’re on macOS machine. The system shows out of space notification even though you have enough space left in the disk. Therefore, it is better to transfer the DMG files to a Windows machine and use freeware like DMGtoISO or AnyBurn for converting. Check our page on burning DMG on windows for freeware tools supporting DMG to ISO conversion.
Mac Dmg File
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Here are ways that you can convert dmg files to iso files on Mac OSX, Windows and Linux.
Before we start, let’s download a dmg file from the public domain. I found one on Apple’s article about The XMLHttpRequest Object website while I was learning Ajax and that can be downloaded from this link. This is just a 150KB dmg file and will be handy if you want to have something to test with while you’re following this tutorial.
How To Convert DMG Files To ISO Files On Mac
Method 1: Using the Mac terminal
1. Open a terminal window from Finder > Applications > Utilities > Terminal.
2. Assuming that you have a disk image called apple.dmg in the current directory, type
hdiutil convert apple.dmg -format UDTO -o apple.iso
3. This will actually create a file called image.iso.cdr in the current directory (even though we asked for the output to be image.iso). This file can be safely renamed to image.iso, copied to a Windows server or machine, and burned with your CD/DVD burner of choice.
Generally, the command hdiutil can be used this way:
hdiutil convert /path/to/filename.dmg -format UDTO -o /path/to/savefile.iso
Method 2: Using DMGConverter (freeware)
1. DMGConverter is a disk image (.dmg, .cdr, .iso) creation and conversion tool which is simple and easy to use. It is a very useful tool for the collective processing of more than one file and every folder, and it can deal with all the fundamental processing with the drag & drop of the file/folder. For Mac Only.
Mac Dmg Burner Windows 10
How To Convert DMG Files To ISO Files On Windows
This is for Windows users who might have downloaded a dmg file and wondering how to extract the content, or not even knowing how and what to do with the dmg file. I’ve been there at a certain stage. the sharewares mentioned are fully functional and allows you to use the “convert dmg to iso” function even when it’s not registered yet.
Method 1: Using MagicISO (shareware)
1. Download MagicISO, install and run program.
2. Click to open dmg file.
3. Click to open “Properties” dialogs.
4. Uncheck Apple HFS and Apple HFS+
5. Check “ISO 9660” “Joliet” “UDF”
6. Click OK
7. Click to save as to iso image, or click to burn to CD/DVD without saving.
Method 2: Using UltraISO (shareware)
UltraISO basically does the same thing, but it can save you time from doing step 3 to 6 compared to method 1.
Alternative Solutions: dmg2iso (freeware) and isobuster (shareware)
I’ve heard and read that some people had been able to convert dmg files into iso files using dmg2iso (freeware). I’ve tried dmg2iso, converted my dmg file to iso without problem, but the converted iso file is corrupted and can’t be open by any tools (Daemon Tools, Alcohol, MagicISO, UltraISO and ISOBuster) that I’ve tested. It might work for you, but no guarantees.
ISOBuster is pretty similar to MagicISO and UltraISO. But too bad that the function to “convert dmg to iso” is restricted and won’t be functional until you buy the software.
Mac Dmg Burner Mac
How To Convert DMG Files To ISO Files On Linux
Free open-source app AcetoneISO provides a great deal of disc image manipulation tools not found in the Gnome desktop. It can mount/unmount a variety of image formats (ISO, DMG, MDF, NRG, BIN, NRG), convert images, create, encrypt, and decrypt ISOs, play DVDs (with the required codecs installed), and much more. It is particularly useful for mounting proprietary formats found in Windows and Mac boot discs. AcetoneISO is a one-stop-shop for all of your CD/DVD image manipulation needs, and is a free download for Linux only. This works on all famous linux distro such as Ubuntu, SUSE, Fedora, Mandrake, and Redhat.
So there you have it, and this should get you covered no matter what operating system you’re using.