I have a few bad sectors on one of my external disks and your app found them. But I can’t see how to deal with them.
Also, I have another 50mb Packard Bell external disk, which isn’t recognised by neither Explorer nor your app. When I plug it into a USB port, the PC makes the connection sound followed by a disconnection sound about 5 seconds later. During that time I would have hoped your app would have found the dodgy disk, but it didn’t.
Can’t say I’m impressed with you app.