I've had some file corruptions when writing or editing stuff from Linux ext4 to Windows NTFS. Yes Linux can mostly read and write to NTFS, but remember that Linux doesn't have the error-proof code to correctly deal with NTFS because that filesystem is protected by MS. It can only emulate it as best it can.
To be safe, I now have a large partition in between Linux and Win that is formatted to FAT32. And old filesystem but both OS's can deal with it perfectly. Only be aware of the 4gb files size limit in FAT32, but who has 4gb files anyway??
Fresh happy penguin since mid juli 2012. Running Mint14 XFCE on my Asus R051DX, and Mate on my HP pav dv6000.