...Plug it in the sharecenter and hold the usb button in until the usb light starts to flash....
Not according to the manual...at least with 2.02 firmware...
It is not necessary to press the USB button when
connecting the USB disk - just wait until the USB LED comes on "solid" to indicate the USB disk is ready
Pressing and holding the USB button for a short while while a disk is connected will initiate the "USB copy" function - whereby USB disk contents will be copied into a folder on the hard drive
Pressing and holding the USB button until the USB LED starts flashing is one way of safely ejecting the USB disk (USB LED goes out when it's safe to unplug the drive)
Refer to the chapter "USB copy" towards the end of the user manual.
Regards,
Richard