PC to MAC

I have a My Book Essential, I have been successfully been untilising it on a PC but have since made the switch to mac. I am unable to write to the MyBook. What do I need to get it working without deleting everything and losing it all?

I don’t know th this is still free but NTFS3G http://mac.softpedia.com/get/System-Utilities/NTFS-3G.shtml might work also check out this post  #6   http://community.wdc.com/t5/WD-Portable-Drives/unwritable-drive/td-p/435872 has some suggestions.

Joe