I am attempting to copy a film that is recorded on the hard drive of my Humax Freesat box. I am using an external Hard Drive, Western Digital 500 GB USB 2.0. When I plug in to USB on Humax box I get a message stating '' usb app not recognized reformat to ext 3 or fat 16/32.When I try to reformat the ext H/D I appear to have only 2 choices NTFS or EX Fat, neither of which is acceptable to the Humax box, can someone please help with this.TIA Ron.