if the file is a tar archive of a bootable system image of some kind, you should do the following:<br><br>1. Run the Terminal application<br>2. Use the cd command to get to the directory where the tar ...

Drag the files into a folder on your hard drive or Option drag (e.g. copy) them to your desktop. Does that work? I suspect you are dragging them to your desktop, and the machine thinks you are trying ...