More info: http://www.wdc.com/en/products/products ... d=770#Tab8We are making changes to simplify the hard drive selection process for our customers by consolidating our mainstream PC product offerings to only the WD Blue family. All current WD Green capacity, cache and form-factor configurations will remain available through their lifecycle, but under the WD Blue brand*. Although WD Green hard drives are part of a new family, they're still the same reliable hard drive you've grown to know and love over the years.
It looks like they'll be maintaining the same internals, so hopefully the new blue drives will be as good as the "old" green drives noise-wise.