Where in God's name did you get that one? TechTools allows you to trashed files in a hidden directory, where they remain as intact as your working files. It has been awhile, but in the MacOS 8.6 era, some applications were able to retrieve "deleted" files from this hidden directory without using the TechTools utility. IIRC, this "bug" was "fixed" in TechTools 3.0. At any rate, TechTools definitely worked on the start-up disk. Diskwarrior is and always has been a file recovery utility. Its claim to fame is that it recovers files by rebuilding directories. Norton Speed Disk is a disk optimization utility. DiskWarrior is nothing like that. Why would you want a MacOS X 10.2 utility to recover MacOS 8.6 disks? However, the current version of Norton doesn't have to support MacOS 8.6. It only has to support the file system that hosts MacOS 8.6. That's HFS+ for computers that shipped with 8.6 and HFS for computers that were upgraded to 8.6 without an update of the file system. The current version of Norton SystemWorks supports HFS+ and HFS. You will have to boot from another disk. However, you would be better off with a MacOS 8.6/9.x- based version of Norton.