Satcomer
In Geostationary Orbit
Occasionally I forget to expel a CD or DVD before shutting down. On startup next time I can hear the optical drive whirring but the Mac ignores the keyboard eject button until it's loaded everything from the HD and system to where it should be. I prefer the Win system in terms of being able to remove or eject devices from the main machine.
On a Mac hold down the mouse button at startup to eject a disk.