18.可进行第一代数字复制的机构是什么? ·用SCMS兼容DAT时,仅可进行第一代数字复制有复制禁止码的音乐磁带。该机构的关键在于记录在磁带上的复制禁止码ID—6和数字输出的种类码(见表4)。 (1)在“11”的信号源端JD—6的情况下(表示只可复制一次)。·数字输出的种类码变成DAT—P,复制禁止码变成“0”(复制禁止)。这表示在普通DAT上,有一个复制 18. What is the mechanism for first generation digital copying? · Only first generation digital copy of music tape with copy prohibited code is possible when using SCMS compatible DAT. The key to this mechanism is the copy inhibition code ID-6 recorded on the tape and the type code of the digital output (see Table 4). (1) In the case of signal source JD-6 of “11” (indicating that it can be copied only once). • The type code of the digital output becomes DAT-P and the copy inhibition code becomes “0” (copy prohibited). This means there is a copy on the normal DAT