The NTFS-3G driver is a freely and commercially available and supported read/write NTFS driver for Mac OS X, Linux, FreeBSD, NetBSD, Solaris, Haiku, and other operating systems. It provides safe and fast handling of the Windows XP, Windows Server 2003, Windows 2000 and Windows Vista file systems. NTFS-3G develops, quality tests and supports a trustable, feature rich and high performance solution for hardware platforms and operating systems whose users need to reliably interoperate with NTFS. The driver is in STABLE status since 2007. It is used by millions of desktop computers, consumer devices for reliable data exchange, and referenced in more than 20 computer books. This version of NTFS 3-G driver requires MacFUSE 2.0.2

MacFUSE allows you to extend Mac OS X's native file handling capabilities via 3rd-party file systems. As a user, installing the MacFUSE software package will let you use any 3rd-party file system written atop MacFUSE. As a developer, you can use the MacFUSE SDK to write numerous types of new file systems as regular user-mode programs. The content of these file systems can come from anywhere: from the local disk, from across the network, from memory, or any other combination of sources. Writing a file system using MacFUSE is orders of magnitude easier and quicker than the traditional approach of writing in-kernel file systems. Since MacFUSE file systems are regular applications (as opposed to kernel extensions), you have just as much flexibility and choice in programming tools, debuggers, and libraries as you have if you were developing standard Mac OS X applications. In more technical terms, MacFUSE implements a mechanism that makes it possible to implement a fully functional file system in a user-space program on Mac OS X (10.4 and above). It provides an API that is a superset of the FUSE (File-system in USEr space) API that originated on Linux. Therefore, many existing FUSE file systems become readily usable on Mac OS X. The MacFUSE software consists of a kernel extension and various user-space libraries and tools. It comes with C-based and Objective-C based SDKs. If you prefer another language (say, Python or Java), you should be able to create file systems in those languages after you install the relevant language bindings yourself.