光盘现在大家都知道，但对光卡则知之甚少。光卡具备光盘格式的许多纪录能力，还有几种重要和独具的特征。光卡的形状和灵活性与一般的信用卡相似（图1）。光卡经久耐用，它不象光盘，可以放在皮夹子里便于携带，还可以装载安全、不可更改的数字数据，包括图像及文字内容。不象 Discs are now known to everyone, but little is known about optical cards. There are a number of important and unique features that optical cards possess as many recording capabilities as optical disc formats. Light card shape and flexibility similar to a general credit card (Figure 1). Light card durable, it is not like a CD-ROM, it can be easy to carry in a wallet, you can also load secure, unalterable digital data, including images and text content. Not like