Of course if you’re burning something like a BluRay disc then it can take quite a while. The time it takes to burn depends on how fast the drive is and how large the ISO image is, but it shouldn’t take too long to finish. Simple right? That’s really all it takes. Click ‘Burn’ and wait until the image has finished burning to the disc.Insert a Blank Disk (CD or DVD, use the appropriate disk as necessary depending on the ISO file size).Navigate to the ISO image file that you want burned and click “OK”.Pull down the File menu and select ‘Open Disk Image’.Open the “Disk Utility” app, it’s located in /Applications/Utilities/.This process will be the same on virtually all versions of OS X:

You’ll also need a disc and a SuperDrive, but that should be fairly obvious if you’re looking to burn a disk image of any sort to physical media. That isn’t necessary though, so as long as you know where the ISO image file is stored you can proceed as usual.

Before proceeding, it may be helpful to place the ISO image somewhere easy to find so that you can access it quickly with the Disk Utility app, the ~/Desktop/ is often a good place for that.

Mac burn iso to dvd sierra