An opening actuator for a video disc player includes a clasp arm with a clasp hole at a distal end thereof, a press button, an elastic component for repositioning the press button and a cover. The press button includes a stop portion for limiting a stroke of the press button, a clasp portion, and at least one guide portion. The cover includes a positioning member and at least one guide member receiving the at least one guide portion. The clasp portion of the press button engages in the clasp hole of the clasp arm for holding the top lid on the cover, and the press button can actuate the clasp portion thereof to exit the clasp hole for releasing the top lid from the cover. Because the press button is located in a side of the cover of the video disc player, there is little risk of the press button being accidentally actuated.