According to an eleventh aspect of the invention, there is provided {HEAD ~ a disc changer} for {TAIL ~ a disc drive unit} according to the eighth or the ninth aspect, wherein the pushing member and the positioning member are in a two body structure of which position is restricted in the moving direction of the disc accommodation section 
According to an eleventh aspect of the invention , there is provided { HEAD ~ a disc changer } for { TAIL ~ a disc drive unit } according to the eighth or the ninth aspect , wherein the pushing member and the positioning member are in a two body structure of which position is restricted in the moving direction of the disc accommodation section
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