| 摘要 |
PURPOSE:To obtain the optical disk substrate which prevents an auto changer from stopping and prevents a occurance of a recording error and reproducing error and has excellent wear resistance and dust generation resistance even when the substrate is used in a juke box. CONSTITUTION:This optical disk substrate has low-friction thin films 4a, 4b consisting of a polyethylene film having the coefft. of static friction within a 0.01 to 0.3 range in the inner peripheral part off a signal recording region. The tacky adhesive power to the peeling of the low-friction thin film from the optical disk substrate is preferably >=0.5kg/25mm. |
