Apple has posted a
firmware update for PowerBook G4 systems. The new update is ready for download from Apple’s Software Download Web site.
The update provides the PowerBook G4’s DVD-ROM drive with updated firmware to improve support for the insertion and mounting of optical media, according to Apple’s documentation.
System requirements call for a PowerBook G4 running Mac OS 9.1 — “This update is not for computers using Mac OS X. You must start up your computer using Mac OS 9.1 to use this update,” said the documentation.