Technology
NTFS on OSX
Apple doesn't ship support for mounting NTFS partitions read-write. You can mount drives, but you can only read from them. Well that's not good enough. Go here:
https://sourceforge.net/projects/catacombae/files/NTFS-3G%20for%20Mac%20OS%20X/2009.4.4/NTFS-3G_2009.4.4-catacombae.dmg/download
No need to reboot, just close the installer when finished, then remount your drive and you'll be writing like the wind.
I use the same drivers for CentOS/Red Hat to mount NTFS all the time.