I'm setting up the backup scheme for my very first Mac, and having some troubles. Ideally, I want to backup the computer + 250G Fat32/NTFS external drive into my 1TB HFS+ drive. The reason 250G cannot be formatted as HFS is that I need to use it with other windows and linux boxes. Is it true that time machine can't backup non HFS drive? When I tried NTFS format, I can remove it from the exclusion list but it's not saved into preference. Any suggestions? Thanks for the help.