I don't know if I've explained this before on this forum, but the 720 / 1.44 floppy disc question is not as simple as taping up the hole. The physical characteristics of the magnetic medium are different. A 1.44 disc formatted by and used in a 720 floppy disc drive will be unreliable compared to the use of a proper 720 disc. As an emergency, fair enough but for day-to-day use you should use the correct format of disc.