In the process of swapping the 160GB 5400RPM Hitachi hard drive for an Intel 160GB second generation SSD, there was a disk in the optical drive that would not come out when the eject button was pressed.
Now, on the MacBook Pro optical drive there is no pinhole for us to use a paperclip or the like to force eject a disk in the drive.
It turns out that all we needed to do was hold down the trackpad button prior to powering up the MacBook Pro.
Sure enough, after holding the button down and powering up the unit out came that disk.
Microsoft Small Business Specialists
Co-Author: SBS 2008 Blueprint Book