external hard drive formatting? I've got a transcend 1TB hard drive that works great with my mac normally, but as soon as I try and download/drag a file thats above 4GB it doesn't work. Is there anyway I can change this without having to delete/move anything on the hard drive? My friend said that he could format it to NTFS, but I said no because I heard that macs are unable to read hard drives that are formatted in that way. Cheers