I'm trying to get a backup of a 3.5 floppy disk, 720K DD that has a program for the hp-86 on it. I can't seem to initialize a new dd disk on the system though. Whenever I execute the command: INITIALIZE "TEST", ":D700", 13, 7 the red light goes on but the disk never gets finished. It either just sits for a long time and doesn't complete or it spits out this "error 129: medium". I obviously can't make a copy on newer pc's because the file format isn't supported. Does anybody have any idea what I can do to fix this?