Apologies for the vague title but don't know if what I'm looking for actually exists. I have a portable hdd connected by USB to my bluray player to watch videos store on my hdd. I have to then move this hdd into the room where my pc is to connect it to the pc each time I want to add extra files. My question is can you get some kind of USB switch device that I can connect all three to at the same time so I can xfer files to the hdd without moving it and then also still watch the videos from the hdd on my bluray player? I know you can get hubs to connect multiple devices to one socket, but I don't know if they'll do what I want because of the direction flow of data will be different. It's almost like the hdd will be the middle man - it will receive files from pc but be able to also send them to bluray player independent of the pc (ie when it's turned off). Hope that makes sense. Does anybody know if such hardware exists?