Burn a CD on Mac on OSX

Question

I followed the instructions and burnt a CD but when I booted with the the CD while holding C at startup on my mac nothing happens!

When I want to see the content, it says "The Disk you inserted was not readable by this computer"

What do I do?

OSX : Mountain lion

Answer 1

From my experience burning disks via Disk Utility, sometimes it can simply mess up on the burning process. You should figure out firstly whether it's a problem with Disk Utility or just the disk. Your best bet is to try burning a second disk and see what happens when you boot.

Also, instead of booting from the CD via the C button, try holding down the option key instead to see a menu of bootable devices to select the disk from there.

Answer 2

Jdonner is right, I have had the same problem and normally its just a bad disk. To minimize the chance of errors you can also burn your disk at a slower speed. On my Mac, I can do it at 24x or 8x. When you restart hold down option and a set of bootable disks will come up, on mine, I get Mac OS X, Windows and the Ubuntu live disk when its in.

Answer 3

A few observations

• make sure you verify the download with md5/sha1 so that you are not burning a bad download.
• if you are downloading 64amd isos, make sure you are downloading the +mac variant. look for the description to say "adjusted to work properly on mac systems"

http://releases.ubuntu.com/quantal/