Wednesday, February 5
Mac OS X
1. Open Disk Copy (/Applications/Utilities/).
2. Drag the disk image file icon into the Disk Copy window.
If the disk image file still does not open, users of Mac OS X 10.2 or later (Note 1) may follow these additional steps:
1. Open Disk Utility (/Appliations/Utilities/).
2. Select the Mac OS X startup disk in the left-hand column.
3. Click the First Aid tab.
4. Click Repair Disk Permissions.
After repairing permissions, try opening the disk image file again.