Mac OS X does not support writing to Microsoft Windows formatted NTFS volumes out-of-the box. The solution is here. Tuxera NTFS for Mac is our commercial read/write NTFS software for Mac users. It builds and extends upon the proven stability of Tuxeras popular open source NTFS-3G to deliver a full featured, commercial grade NTFS driver for your Mac. With Tuxera NTFS for Mac you can access your Windows disks as easily as any Mac disk. Tuxera NTFS for Mac delivers the fastest NTFS data transfer speeds you can have on Mac while protecting your data with its new, smart caching layer.

General features
Works in both 32-bit and 64-bit kernel modes
All NTFS versions supported
Create NTFS partitions
Create NTFS disk image

Advanced features

Smart caching for high-performance read/write
Automatic translation of file names
Native extended attributes

Compatibility with other software
Any third party software, including:
Parallers Desktop(R)
VMWare Fusion(R)
TrueCrypt

Performance
Speed similar to native HFS+

System requirements
Supported platforms: Mac OS X 10.4-10.6, 10.7 when released
Supported hardware: An Intel or PowerPC Mac