A method and apparatus for improving write performance in a disk array is disclosed. In embodiments, a novel transmit signal uses a wide contiguous band of tones that includes frequencies in both upstream and downstream bands. The half cups are pivotally movable together about the living hinge to mate or overlap each free distal side margin of each of the half cups to form a substantially complete cup having a substantially cylindrical side wall, a substantially closed bottom, and an open end adapted to admit a doorknob therein. Some embodiments include improved features such as a bend in the catheter body for enhancing positioning andor advancement of the catheter. Since a braking operation is detected by both the signal from the normally closed switch the signal from the logic circuit, the system will not lose the ability to cancel the driving control even when there is a problem with one of these circuitry arrangements. The distribution server includes a metadata generating section for generating an XML file containing URLs of media segments belonging to past Periods.