除了新的化妆品更精细，电路布局和元件选择，已被广泛地更新。

Besides the new more refined cosmetics, the circuit layout and component choices have been extensively updated.

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用于搜索可写区的设备和方法，用于更新记录管理信息的设备和方法，集成电路，以及一次写入信息记录介质。

Apparatus and method for searching for writable area, apparatus and method for updating recording management information, integrated circuit, and write-once information recording medium.

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整个系统可通过JTAG口和RS232串行通讯口进行现场编程烧录，能方便地调整电路的工作状态或实现硬件控制程序的升级、更新。

The JTAG port and the RS232 serial port are designed to program in-situ. In teams of them, it is easily to adjust the circuit's working parameters or to update the control program.

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