Summary: I loved this HD so much when I bought it originally, that I bought an identical one for additional data storage. These Western Digital HDs are great. I got my first "My Book Studio" series HD in 2005, and it is still operating flawlessly.
Summary: Excellent backup device. I have it connected to an iMac and the backups are totally tranparent. Backups are easily viewable from Time a Machine. The software provided works great with the computer. The drive can also be used for general data storage.