| 摘要 |
PROBLEM TO BE SOLVED: To support a noncircular CD in a CD drive so as to be able to stably and smoothly rotate the noncircular CD and also to easily adjust the position of the center of the noncircular CD to the position of the center of a tray. SOLUTION: This attachment 15 which is fitted into a recessed part 12 for CD housing formed in the tray 9 of the CD drive 6 and guides the loading of a rectangular card type CD 1 on the tray 9 is defined as a ring shape in which the outer diameter is almost the same as the inner diameter of the recessed part 12, the inner diameter is almost as long as the diagonal line of the card type CD 1, and the thickness is also almost equal to the depth of the recessed part 12.
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