Iisikrini se-disciqukethe ama-discs ajikelezayo okuhlukanisa imfucuza ngokusebenzisa imvume phakathi kwama-discs kuye ngokuthi ubukhulu kanye nesisindo semfucuza ngenkathi imfucuza ihamba kuma-rotation disc.Izikrini zamadiski ziyakwazi ukuhlukanisa ukungcola, uthuli, imfucumfucu evuthayo nengashi futhi zisetshenziswa kabanzi embonini yokuhlanza imfucuza ukuhlukanisa imfucumfucu yokulahla imfucuza engahlanzekile kanye nemfucumfucu yezimboni exubile.