Source Identification Code regulation Article 6
A stamper code shall be printed in the lead-in area of the stamper and inscribed to the front side of the optical disk at 18mm 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6條
母版碼應列印於母版之資料引入區，並於光碟製造過程中壓印標示於光碟正面上；其位置為距離光碟中心點十八毫米至二十二點五毫米間。