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Many searches and tutorials all showed that if you drop an .iso file in Disc Utility and go to Burn it will make a bootable disc but when I do it in Yosemite it will burn a copy of the .iso file. How do I make a bootable disc in Yosemite?

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  • Locate the .iso file you want to burn and place it on your Desktop:

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  • Navigate to to Disc Utility (Applications -> Utilities -> Disc Utility)

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  • Once Disc Utility is opened, drag and drop the .iso file into the side panel and highlight the .iso file:

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  • Click Convert located at the top:

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  • Under Convert use the settings of Where: Desktop, Image Format: DVD/CD master and Encryption: none and choose Save:

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  • Drag and drop the .cdr file from your desktop into the side panel and select the .cdr file:

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  • Enter a new disc
  • Click Burn located at the top and you should be prompted to burn the .cdr to the disc:

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  • I ended up here trying to create a readable, much less bootable, Ubunto boot DVD-R from an iso. Your steps seem to be the same steps as described in this thread, except you left off a very important note: Depending on what OS built the .iso, the result may not be readable by your Mac... So I was following your directions, but thinking they were still failing because the result wasn't readable, though it turned out the result did work as a boot DVD on my other system. – Von Jun 15 '15 at 3:33
  • If there is a difference i will go back ans check but i posted this because all the research i couldn't figure out why it didnt work. I still use this approach so if you are saying a particular ISO file isnt working let me know and ill test. – ʀ2ᴅ2 Jun 15 '15 at 3:37
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If you've Burn app installed, the easiest way is to right click on the .iso file and select 'Burn Disk Image XXX to Disc...". This will run the app with appropriate settings. When ready, hit the Burn button.

Should work in El Capitan and Sierra macOS as well.

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