Excerpt: I use this drive to back up another portable external drive which serves as my primary hard drive. I needed software that allowed this kind of continuous backup. The WD Smartware upgrade (which is free with this purchase) makes this possible allowing me to always have an up-to-the-minute backup. Backup software from two other hardware companies does not support this feature. This is the hard drive to get!
Pros: Easy to use, Quiet, Versatile Backup Software