I dont know if this is in the right area, but I am a mac newbie and I bought a Seagate 1 tb external harddrive yesterday and tried to move my files from my pc comp into the external harddrive (which worked) but when i tried to move my files from my macbook pro to the external harddrive, it wouldnt let me. Is this not compatible for both, and if not what external harddrive would you suggest that i can use as a drag and drop type external hd?