I have a ton of info on my ntfs external disc but i want to be able to write info from my mac on the disk, so im going to format it and make it possible to write on it from Mac Os but which option should i choose to format it? Mac Os External (journaled)? Mac Os External (case-sentitive journaled), Mac Os External (case-sentitive journaled,encrypted) or maybe exfat withexfat i could be able to write on it from both windows 8 and mac os, right? Also if i format it in Mac Os External (journaled) how do i write on it on windows 8? are there official drivers from Apple? i read theres a paid app called MacDrive 9, but its it worth it and necessary to buy it? it's 50 euros!