I am trying to enable the recording function on my Sony KDL 50W670A but it says USB drive not recognised when I try to register. Yet it has no problem reading the drive for playback. The Sony support site is worse than useless. I can find no mention of the recording function at all and the site is broken anyway. I have also scoured the Internet but can find nothing about this. Can anyone lend any insight into this issue? Does the drive have to be formatted in a particular way? Is there anything that can be done to fix this? The total lack of any information whatsoever is very frustrating.