I don't know if sme can read NTFS
I'm sure it can't write to it
Neither in my experience. You will need to reformat to FAT32 or ext3.
FAT32 has a 4gig file size limit that you need to be aware of. Your choices are:
Format to FAT32 and mind the file size limit. Both Linux and Windows will be able to read/write to the disk.
Format to ext3 to avoid file size limit. However, you will only be able to read/write on Linux, Windows will be able to read/write to ext3.
You can however load drivers into Windows that allow read/write of ext3 files under Windows.