I don't think its possible to hide tracks from those programs that do sector copying. There are other ways of protecting your programs. Theif (and I'm assuming Theif II, but I haven't bought that one yet) managed to do something to the FAT on the CD. It says one of the files is 2 gigs =) Just to see if it actually worked, I tried copying it, and it wouldn't copy. I thought that was pretty clever.