On Fri, 1 Jul 2016, Marc Rochkind wrote: > Those original floppies were I believe 160K. If you paid extra, the box > would hold two drives. Later, IBM introduced double-sided drives, at > 320K each. Those in the know, of course, simply put a notch on the opposite side. -- Dave Horsfall DTM (VK2KFU) "Those who don't understand security will suffer."