Hi all. I have transferred some video, photo and music files to a WD external USB hard-drive. Trouble is, when I try to view the folders on the PS3, it does not recognise any sub-folders. Is there an easy way to fix this by changing a setting on the PS3 or do I need to re-arrange the whole folder structures on the USB hard drive? Alternaitvely, can I put some "media server" software on the USB hard drive? I know that you can on NAS drives, but I'm guessign that is nto applicable to USB hard drives as they are not network driven.