Problem with ntfs drive and OSX

I am not sure if commercial software can be taken into consideration here
but if it the answer is yes:
I can recommend you "Paragon NTFS for Mac OS X" application

Fast, reliable and very efficient - tested personally with "no glitches" on OS X Leopard, Snow Leopard and Lion;
I suppose on Mountain Lion it should work as well.

Easy to install, can be disabled at any time from a control panel, worked for me with any NTFS-based Windows system from XP, Vista, 7 to the latest 8.

However, Fuse4X + a bit obsolete ntfs-3g is absolutely OK for ...
more tech-savvy users, as many of them are here :-) fortunately

I didn't have an opportunities to check it but I used MacFuse before (http://code.google.com/p/macfuse/) and it works 'almost' perfect.

This is hardly of any help for current and future users as it does not consider more recent releases of NTFS-3G and FUSE4X.

Before copy&pasting the given stuff, make sure you replace the given FUSE4X version "0.9.2"with the version you got installed:

sudo /bin/cp -rfX /usr/local/Cellar/fuse4x-kext/[YOUR_INSTALLED_VERSION_OF_FUSE4X]/Library/Extensions/fuse4x.kext /Library/Extensions

The same is true for NTFS-3G's given version "2012.1.15":

sudo ln -s /usr/local/Cellar/ntfs-3g/[YOUR_INSTALLED_VERSION_OF_NTFS-3G]/sbin/mount_ntfs /sbin/mount_ntfs

@lobotomat: thx for that! Fixed