We all know that in the pioneering days of the 80's and 90's that disks weren't very intelligent and required a lot of technical intervention to get the best performance out of them. This means things like manually entered defect lists and user-adjusted interleaves. Band and geared and screw-drive stepper motors and no temperature compensation only made stuff all the more precarious. Once the 486 hit the market, disks became intelligent and all the manual tweaking went away. And so did SpinRite's relevance. Today, SpinRite is good for verifying surfaces and triggering the disk's firmware for automatic defect management. In other words, SpinRite focuses the drive's controller's attention on weak spots. But that's about it. Nothing that can't be done by the free mfg. zeroing and test utility. What do you think it would take to make SpinRite useful and important again?