How do I eject a CD when the sys prefs default to it as start-up disk
I am trying to erase my wife's previous MacBook Pro (and then my 17") due to new MacBook pro's. She transferred via migration assistant with no problems. Now I want to erase her old one for me to transfer my data from my 17" MacBook Pro. I tried using my tech tool deluxe CD to start up from then do the erase. However the Mac will not read the CD and the system prefs are set to use the CD as the start-up disk. I can't get the disk out!!!
Once it is out I still need to do the transfers etc. What's the best way to accomplish this.
Many thanks
MacBook Pro, OS X Mountain Lion (10.8.2)