An image information recordingreading method and apparatus for positive and short-circuited reading system capable of obtaining both moving and still pictures with improved image quality. With a first USB connecting portion and a second USB connecting portion, a locking arrangement is provided for physically securing the first USB connecting portion and the second USB connecting portion with respect to one another. The electrical quantity may be indicative of a voltage or a change in voltage occurring in the intermediate circuit during operation of the inverter. If the media object includes a still or a sequential image, then an image editing screen is invoked. An error checking value generator system comprises a general purpose DMA controller and an arithmetic circuit.