The following disks suffered damage in storage: MS-DOS with ScreenMate disk: There were errors on sector 3 head 1 tracks 30 and beyond. This image is damaged, although since 3/4ths of the disk dumped correctly, it can still be used to boot the system. ScreenMate is likely the damaged component. ------------- There was a disk provided for diagnostics, appropriately labeled "Blank Disk for Diagnostics". Sure enough, when the flux transitions were looked at, the disk was completely blank.