Recently the hard drive crashed on one of our home computers, suddenly and without cause. When we took it apart to replace the hard drive, we discovered it was a Seagate SATA 500GB / 7200 RPM. It was a good opportunity to upgrade the operating system, and install a larger drive… perhaps 1TB. About a year ago when the machine was purchased, 500GB still seemed large, now it seemed small and inadequate, particularly for storing our large and growing collection of home videos. Cost to replace (without price shopping): $49.00.