Two of my friends have external harddrives, and when I try to take files off of them, I can, but when I try to put files onto them, I get "The item (File) could not be moved because (harddrive) could not be modified" and this blows. I have a Mac, they're both pc users. I forget the exact harddrives but they both have the format Windows NT File System, and one is a 160gb hd1600 HP Personal Media Harddrive. Sooo, tell me something about external harddrives, is this a typical problem for Mac users, can it be gotten around, or do I have to go buy my own Mac-compatible hard drive in order to give them files from my own comp? If that's the case...what's it gonna cost me? Gah. This is aggravating, especially since they see it as another reason to tell me that Macs suck.