I have macbook pro 13" 2011 edition. I'm trying to share a segate external HDD with win 7 computer. When I first started, I could only read the segate but not write. I tried NTFS-3g + macfuse and it didn't work since I read that snow leopard is 64 bit. So I installed tuxera ntfs and i can now read the external HDD. However, i still can't use my mac to write to my SD card that I use for my digital camera. It says "you can only read". Any ideas? Does 10.7 have native support for ntfs?