(Macintosh UFS (UNIX File System) format not supported.)(*) (*) Macintosh UFS (UNIX File System) format not supported. To Users of EOS-1D Mark II N, EOS-1Ds Mark II, EOS-1D Mark II, EOS-1Ds, EOS-1D Macs with one of the supported OSes preinstalled, with an OHCI-compliant IEEE 1394 port by default. (Macintosh UFS (UNIX File System) format not supported.)(*) 2-2. To Users of EOS 7D, EOS-1D Mark IV, EOS Kiss X3 / EOS REBEL T1i / EOS 500D, EOS 5D Mark II, EOS 50D, EOS Kiss F / EOS DIGITAL REBEL XS / EOS 1000D, EOS Kiss X2 / EOS DIGITAL REBEL XSi / EOS DIGITAL 450D, EOS-1Ds Mark III, EOS 40D, EOS-1D Mark III, EOS Kiss DIGITAL X / EOS DIGITAL REBEL XTi / EOS 400D DIGITAL, EOS 30D, EOS 5D, EOS Kiss DIGITAL N / EOS DIGITAL REBEL XT / EOS 350D DIGITAL, EOS 20D, EOS 20Da, EOS Kiss DIGITAL / EOS DIGITAL REBEL / EOS 300D DIGITAL, EOS 10D, EOS D60, EOS D30 Macs with one of the supported OSes preinstalled and that come with USB ports by default. Mac OS 10.4 users should update it to Mac OS 10.4.8 or later. Mac OS 10.5.6 users should update it to Mac OS 10.5.7 or later. Supported OSes MacOS X v10.4 - v.10.5 * Mac OS 10.5 users should update it to Mac OS 10.5.3 or later.