I don't know what you're trying to do. Are you trying to hook up your blueray player to the external device so that you can use it as an external device, are are you trying to connect them both to the machine at the same time so that you can copy data back and forth? we need a little bit more information to help you. – Roy RicoMar 11 '10 at 23:15
No. According to the Samsung BD-P1600's product specifications, it does not have any USB 2.0 ports, so you cannot connect an external HDD. Even it had a USB port, you would have to format the HDD in FAT32 format.