So I downloaded Windows 7 eventually, and I burned the iso onto a DVD.
Then I went into Boot Camp Assistant to partion my HDD, and install it. But this came up.
I have tried rebooting and pressing alt, but no DVD comes up
What is wrong

Then I went into Boot Camp Assistant to partion my HDD, and install it. But this came up.

I have tried rebooting and pressing alt, but no DVD comes up
What is wrong