I have a few years old WDTV and recently purchased a WD My Passport 1TB for storage and viewing video. For the first few days, all went well - plug the drive into the WDTV and watch TV. Now, the WDTV cannot power-up the new disk, but my desktop can. I know I need a Powered USB hub, I just need to know the power requirements for the 1TB disk so that I get a hub that provides enough amperage to the ports. Thanks!