WD My Book Essential

[Wizer]

Drive is currently NTFS which is read only on Mac

need to format the drive, follow these steps

http://wdc.custhelp.com/app/answers/detail/a_id/3865/session/L3RpbWUvMTM1NTc4Mzk4Ny9zaWQvV0pOZHdfZGw=/kw/format