sinclair_tm

What are the hardware specs of the Mac, and are you using an Apple keyboard? If so, stick the CD in, and then hold down the "Option" key when you start it, and keep holding it until you get a boot menu, give it a bit of time, and it will list all the bootable drives that the Mac can use, including CDs. Click on the CD icon, and then the arrow, and it will boot from the CD.

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