| 摘要 |
The invention relates to a new visiting card (1) which in addition to being used in the usual fashion can also be inserted into a normal CD player (2) and read in this way. This is made possible by special centring means in a CD player (2). The visiting card becomes a CD visiting card having a printed upper side visually perceived by the eye and a lower side which can be inscribed with data and read by a computer. |
