Short version: copying NTFS drive to identical HFS+ drive results in 8GB of unaccounted space... ? Long version: Plugged in 80 gig media drive from my Windows XP computer, so it's NTFS. Plugged in an 80 gig media drive that I formatted as Mac OS X Extended (Journaled). (note: same model, size of hard drive) Opened the NTFS drive (named Storage) Select all the folders, copy 14 items Opened the OS X drive (named OS X storage) Pasted all the folders. Waited about 1.5 hours as it copied 60GB or so. Should be a clone, right? Nope. The NTFS drive has 6.93GB free, the OS X drive has 14.24GB Free. as shown here: But here's the odd thing: all the folders I copied are exactly the same size. as shown here: where did the other 8GB on the NTFS drive go? it can't be 8GB of drive overhead can it? I want to make sure I have an exact copy, so this is driving me nuts. please help!