Actually, Mitch, SOS is an antecedent (an ancestor) of ProDOS -- SOS came first by a good couple of years. -- sheppy@aol.com |-------------- Eric Shepherd ---------------- uerics@mcl.mcl.ucsb.edu |Programming Law #23: Murphy's Law of powerpc.pro@genie.geis.com|Computing: Even if nothing can possibly go sheppy@cs.ucsb.edu |wrong, it will. [Apple II Forever!]