US Patent 7532559 Audio player

An audio-player comprises a loading-unit, a memory, an operating-unit, a dubbing-unit, a playback-unit, and a display-unit. The loading-unit loads a disc. The memory has a plurality of data-memory-areas. The operating-unit has direct keys for selecting the specific data-memory-area in the plurality of data-memory-areas. The dubbing-unit dubs sound-data recorded on the disc with a proper disc identification number which the disc has, into the data-memory-area selected by the direct key. The playback-unit plays back the sound-data stored in the selected memory area. The display-unit has a quantity-display-area and a location-display-area. The quantity-display-area has a plurality of display parts. The quantity of memory used for storing the sound-data in each of the data-memory-areas is indicated in each of the display parts. The location where the sound-data is being played back from or is stored in the memory, is indicated in the location-display-area.