Help for copying files from MAC to My Passport USB Drive

Actually i bought new HD and i install the software for using it in mac but unfortunatley i cant copy any files from my mac to it. even in WD SmartWare home screen its showing (NO writeablle WD Smart ware Partition found). either its working very properly i can view the files the 1 copy from my window laptop and can open them like pics movies.

will be thanks ful.

Is the drive formatted for Mac or Windows?


HMMM, 1st off all thanks for replying but i didnt get u. how i can knew its formatted for mac or window… anyway i installed the software for mac from WD website…because the software was in the drive for mac was not working.