Another day, another NAS device. This time, it's storage giant Western Digital stepping up to the plate with a revamp of its My Book World Edition network drive. In addition to larger capacities (1TB or 2TB), the new version comes with a couple of features that may help set it apart from the ever-growing pack.
If it works as well as it sounds, My Book's new continuous backup function is just the type of simplicity people demand out of network storage: you can set it up to automatically save a copy of every new file on your network to the drive. This compares favorably to having set up a backup routine of some kind, even if it occurs at regular intervals. WD also uses its Green Power Drives in the new My Book; they run cooler and are a third more power-efficient than other drives.
The drive, clad in Mac-friendly white plastic, also comes with the usual gallery of features today's NAS devices should offer: iTunes and DLNA server capabilities, browser-based remote access to files, a USB port to attach an external drive for additional storage, Gigabit Ethernet port, etc. The 1TB version of the My Book World Edition is available now for $229.99, while the 2TB version will ship next month for $449.99. Yes, the extra terabyte will cost you an additional $200+, but remember that's a single drive, rather than just WD inserting another terabyte drive into a second bay. (As a point of reference, a Western Digital 2TB internal Caviar Green drive costs $299.)