After installing Mac OS X 10.4.9, pressing the Media Eject key on the Apple keyboard does not immediately eject media from the optical disc drive nor display the on-screen eject symbol.
To prevent accidentally ejecting media, Mac OS X 10.4.9 adds a slight delay to the Media Eject key before it takes effect. To eject a disc, hold the Media Eject key. The disc will eject normally and the eject symbol will appear.
This document will be updated as more information becomes available.