| 摘要 |
Music files are downloaded to a card type hard disk (4) having a large capacity, using a personal computer (2) in which a dedicated application program is installed. A battery operated hand-held mobile audio player (6), to which the hard disk card (4) is removably inserted, reproduces the music file to play music. The mobile audio player has a small size (such as hand-held), and is capable of being driven for a long time with a battery, and further, can secure a sufficient storage capacity. |
