Kuri hook na loop kaseti, porogaramu nyinshi zikoresha inyuma zifatika. Ibifatika bikoreshwa mugukoresha ibyuma kuri plastiki, ibyuma nibindi bitandukanye. Noneho, rimwe na rimwe, ibi bisobanuro bikoreshwa byitezwe ko bizahoraho iteka. Muri ibi bihe, rimwe na rimwe ni ijosi ...