Hi, I recently bought a 8TB Seagate Backup Plus external drive with data recovery services. It imported/backed up my computer's drives and my two external Seagate drives without problems. But it will not import my two external WD drives. The computer recognizes the WD drives, and they obviously work fine. Even the Seagate external will play the WD drives when they are plugged into the Seagate's USB port, but it will not import them. Can I do anything to import the WD drives to the Seagate drive? If not, any recommendations on a 8TB+ external drive to buy instead? I bought the Seagate from Costco with its wonderful 90 day return policy, so I am still able to return it. TIA....