I have Mac OS 8.6. How do I upgrade to computer software to have USB Mass Storage Compliance?
You must download the drivers from Apple computer. Download the USB Mass Storage Support 1.3.5 from the Apple Software Updates web site http://www.apple.com/support. You will need to use the search function to obtain the correct driver. The file is approximately 1.5 MB. The update is included in Mac OS 9 and above.