Question about WD My Passport

Yes, just format it in the format of your choice the first time you use it.

Hi Chris,
Yes, perfectly compatible with Mac. Just go to the "Disk Utility" software, select the previously inserted disk in the left-hand column, then click on the "Erase" tab, to reformat it to "Mac OS Extended (Journaled)" format, and you're done. It only takes a minute.