Mac OS 9.1 and Software Updates: .smi Disk Image Volumes Appear Empty

On computers with Mac OS 9.1, a self-mounted disk image volume may appear to be empty the first time it appears on the desktop. This type of disk image is frequently used for Apple software downloads.
Symptom

A disk image volume appears to be empty.

Note: A disk image volume has an icon that looks like a disk and a filename without any extensions. It behaves like a disk. A self-mounting disk image file has an icon that looks like a file (a paper with a dog-eared corner) and a filename extension of ".smi".


Solution

For additional information on this issue, see technical document 75098 "Software Downloads: Software Format and Assistance".
Published Date: Feb 20, 2012