Disable "Select CD-Rom Type" message

Hello,

I have bought Acronis True Image 2015 to use it on a Macbook under Windows

I have created the AcronisBootableMedia.iso and burn it on a CD-Rom

But when I boot the CD-Rom on my Macbook, there is this message :
"Select CD-Rom Type : - 1 :
- 2 :"

I cannot choose because the keyboard (internal or usb) does not work when I type on it.

I have had this issue when installing Windows on the Macbook and I have found a way to modify the CD-Rom so the message does not show up, but this modification cannot be applied to the Acronis CD-Rom.

At this point, I don't know what to do.

Thanks per advanced for your help