Source Identification Code regulation Article 5
A mold code shall be etched on the glossy surface of the mold with an etching depth between 10 to 25 and inscribed to the high-pressure area on the readable side of the optical disk at 14.5mm to 22.5mm from the central point of the optical disk in the process of manufacture.
中文原文 來源識別碼管理辦法第5條
模具碼應蝕刻在模具之鏡面，蝕刻深度為十微米至二十五微米間，並於光碟製造過程中壓印標示於光碟讀取面高壓區；其位置為距離光碟中心點十四點五毫米至二十二點五毫米間。