I just got a My Passport 500GB portable drive. I have an imac running Mountain Lion 10.8.2. When I plug the external drive into my iMac it shows up but I cannot save anything to it. I’m assuming that means it is formatted for a PC and not a mac. How can I format it to work with a mac? I went to this link http://support.wdc.com/product/download.asp?groupid=218&sid=157&lang=en and downloaded the WD Universal Firmware Updater for Mac and ran it but I still am not able to use the drive on my iMac.
Can anyone advise me on next steps? Thanks so much! And Merry Christmas!