Copying ISO file to USB drive in OS X? I have tried to copy an ISO file to a USB drive. I am unable to do it with Disk Utility. How can I copy the ISO file to a USB drive?

But I get the below. I have enough space in the 16GB USB drive for the 2GB ISO file. What am I doing wrong?

Debugging

Bmike commented &quot;You can isolate the scanning of the image from the restoring to see if the problem lies with the image or the copy. Images -&gt; Scan Image for Restore... from the menu of Disk Utility.&quot; but the procedure fires the error below. What does it mean?
IMHO the easiest way is in terminal:


First run diskutil list
then insert your usb stick
and run diskutil list again to see the disk node (e.g. /dev/disk2).
Now run diskutil unmountDisk /dev/diskN
and do sudo dd if=/path-to.iso of=/dev/rdiskN bs=1m (or bs=1M with homebrew)
When finished diskutil eject /dev/diskN