Abstract: A user interface for an audio/visual device enables a user to customize the selection of menu items that are displayable on a menu, perhaps a racetrack menu, provided by the user interface to enable the user to operate the audio/visual device, in which a multitude of menu items that may be selected for being so displayed are visually displayed and the user is able to operate a first manually-operable control (or a first set of manually-operable controls) to select a menu item from among that multitude for being displayed on the menu. It may be that the menu is simultaneously displayed with the multitude of menu items to enable the user to immediately see the results of their selections. It may be that the user is able to again select that menu item within the multitude of menu items to cause that menu item to cease being displayed on the menu.

Abstract: A user interface for an audio/visual device enables a user to customize the selection of menu items that are displayable on a menu, perhaps a racetrack menu, provided by the user interface to enable the user to operate the audio/visual device, in which a multitude of menu items that may be selected for being so displayed are visually displayed and the user is able to operate a first manually-operable control (or a first set of manually-operable controls) to select a menu item from among that multitude for being displayed on the menu. It may be that the menu is simultaneously displayed with the multitude of menu items to enable the user to immediately see the results of their selections. It may be that the user is able to again select that menu item within the multitude of menu items to cause that menu item to cease being displayed on the menu.

Abstract: A device for reading or writing on optical recording media with disk type recognition capability has an optical scanning device and a focus regulating circuit. The object of the invention is to provide a device of this type which can reliably recognize in a short time the type of the recording medium inserted into the device. Another object of the invention is to provide a corresponding process. These objects are attained in that the disk type recognition capability includes a mirror signal generator, a threshold value generator, a counter and an evaluation unit. The process is based on the utilization of a mirror-signal value of the device for disk type recognition.