CD error after installing MacOS 7.6

Power Computing provided the information in this article and it was deemed accurate as of 14 November 1997. Apple Computer, Inc. is not responsible for its content. This article is being provided as is and will not be updated in the future.

I just upgraded to MacOS 7.6. Upon the next restart, a got a message that "CDT could not load because the drive is supported by another CD-ROM driver".
In the past, the Apple CD-ROM extension has not offered support for the vast majority of CD-ROM drives. Most non-Apple CD-ROM drives, including drives used in Power Computing computers,were not supported by the Apple CD-ROM extension and so could not be mounted by that extension.

Apple CD-ROM 5.3.1, which ships as part of MacOS 7.6, offers generic support for 6x or faster SCSI CD-ROM drives. This enables non-Apple CD-ROMs to mount CDs without the presence of an additional third-party driver such as the FWB CD-ROM Toolkit used by Power Computing.

When a customer upgrades an existing System Folder to MacOS 7.6, the CD-ROM Toolkit is not removed (as it is a third-party extension). As the Apple CD-ROM extension loads before CD-ROM Toolkit, it provides support for the CD-ROM. This causes CD-ROM Toolkit to alert the user to the fact that the drive is supported by another driver.

Though the Apple CD-ROM extension will provide limited functionality, Power Computing recommends that Power customers use CD-ROM Toolkit as their preferred CD-ROM driver as it is more robust and offers higher performance.

In order to eliminate the CDT error message, add a space before the CD-ROM Toolkit extension's name. This will cause CDT to load before Apple CD-ROM, preventing the error message.

Machines Affected: All
Published Date: Feb 20, 2012