OSX Mountain Lion does have built-in support for NTFS, and it can read and write. However, Apple does not enable it by default. Doing so is easy, however. Carlos was close, but he forgot to include the nobrowse flag which is required.
Here is what you should do:
- Uninstall other 3rd-party NTFS software, like Paragon, Tuxera or NTFS-3G.
- Edit /etc/fstab (you can do this with "sudo nano /etc/fstab" as Carlos suggested
- Add the following line:
LABEL="THE_NAME_OF_YOUR_VOLUME" none ntfs rw,auto,nobrowse
- Quit your editor (if you used nano, you can do this with Control-X, Y, Enter as Carlos said)
- Reboot, or if you prefer just unmount and re-mount the partition using Disk Utility
- Voila! You have read-write support for this partition in OSX
Caveat: As of Mountain Lion, the nobrowse mount option is required for this to work. This means that the partition will not show up on your desktop. However, you can access it normally through Finder by either:
- Run Terminal and type "open /Volumes/THE_NAME_OF_YOUR_VOLUME" (without the quotes
- In Finder, press Apple + the up arrow over and over until you see all of your mounted volumes. Your volume will be listed here.
Enjoy! However, this is all at your own risk. My guess is that Apple didn't enable this by default because they want people to keep their data on the Mac side of the house. However, it could also be that the NTFS driver has bugs that could destroy your data. That being said, I would tend to trust the 1st-party implementation by Apple over 3rd-party implementations.