Moving files from Mypassport to another drive

WD External Drives External Drives for Mac
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Let me know, are you using it on your mac? My passport comes with the format NTFS by default, that format shows the info on your mac but as read only, my advice is to plug your drive on a pc, backup the info, format the drive to fat32 wich is a format accepted by mac and pc, and try again. check at this  http://wdc.custhelp.com/app/answers/detail/a_id/291/session/L3RpbWUvMTM3MTAwNTM2NS9zaWQvdGVrS3l3c2w%3D