Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Defective Unit

Tried subject Drive on two different G4 Mac Powerbook computers, each using Tiger OS 10.4.1. Tried both the 2.0 USB cable and the DC cables and then used a hub. Never could get the drive to function. No e-mail response from Toshiba tech listed in the guide. Finally tried Repair/Replacement which was not helpful.Contacted Amazon and said after several hours of frustration had concluded that the Unit was defective.No problem with returning it to Amazon. They will refund. Didn't care for a Toshiba replacement and will purchase some other External Hard Drive. This may be a good Unit when it works, but my experience with it and Toshiba tech support was unsatisfactory. Amazon get 5 stars. The defective Unit a zero.