Abstract: A video information playback apparatus includes a ring placed around a rotary knob with which a user manipulates jog or shuttle operation. A controller in the apparatus sends a signal to an illuminating section behind the ring depending on the jog or shuttle function selected, so that the illuminating section emits light through the ring. This structure allows the user to recognize which function is now in use.

Abstract: A memory card installer, comprising a main body having such a shape that can be installed on a memory card installation part provided on a device allowing a memory card to be connected thereto, an installation part allowing a plurality of memory cards to be installed thereto, device side input and output terminals connected electrically to a device side in such a state that the main body is installed on the memory card installation part, a plurality of memory card side input and output terminals connected electrically to each of the memory cards installed in the installation part, and a connection switching part switching the connection of each of the memory card side input and output terminals to the device side input and output terminals.