I'm having problems formatting Lacie 2TB drives to NTFS. I had an identical one which we formatted to NTFS and it worked both on MAC and PC. But now when we're doing them they are not working on my Macbook. They also seem to be partitioned so they have only a small amount of GB on them.
I use MAC, OS 10.6.5 or higher and erase/format all drives ExFat. This works great on 10.6.5 or higher and works great on PC back to XP SP2. This was our work around for NTFS on MAC and MacDrive on the PC's. Ths issue we have run into has been others on MAC that do not have the minimum MAC OS.