An optical information recording medium, recording and reproducing method and device for same, and an optical pickup, which enables high-density recording and high-speed recording. These techniques operate, for example, on image data affected by sensor saturation andor microlens modulation. , fibercoax networks and wireless networks, supports both continuous bit rate and variable bit rate traffic representing voice, video telephony, interactive television, and data. The educational content comprises a question. Access to the cooled or heated liquid in the bottle is gained in each case by inverting the bottle in conventional manner to allow a flow of liquid from the bottle through the openings in the upper portion of the tube or the tube connector and into a spout provided in the cap, for drinking purposes.