| 摘要 |
PURPOSE:To improve the efficiency of dubbing by containing each distribution disc into one cartridge and taking in/out each distribution disc between the cartridge and plural drivers at each dubbing. CONSTITUTION:The content of information of a disc original F51 is copied and distributed to distribution discs F1-F40 by using a disc dubbing device, and after the distribution discs F1-F40 are studied, the reaction of study is recorded on the discs F1-F40, only the study reaction is extracted and collected on a disc original F52 and the distribution discs F1-F40 are contained in the cartridge 1. Whether or not the cartridge 1 is loaded correctly is confirmed by the dubbing device and slots 3, 3' acting like preventing vertical movement of the cartridge 1 in movement or the distribution discs F1-F40 ejected are provided at heights different from the lower face of both side faces.
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