Apparatus for recording and/or reproducing disc-shaped recording medium including driving source for driving carrying mechanism and elevating mechanism

An apparatus for recording and/or reproducing a disc-shaped recording medium, comprising:

• a plurality of placement members on each of which a disc-shaped recording medium is placed;
• a housing unit in which the placement members are stacked and housed;
• an elevating mechanism for elevating the housing unit in the direction almost parallel to the stack direction of the placement members;
• a recording and/or reproducing unit for recording or reproducing the disc-shaped recording medium;
• a carrying mechanism for carrying one of the plurality of placement members among a position where a disc-shaped recording medium can be placed or ejected to/from the placement member, a position where the placement member is housed in the housing unit and a position where the disc-shape recording medium placed on the placement member is loaded to the recording and/or reproducing unit;
• a driving source for driving both the carrying mechanism and the elevating mechanism;
• a switching mechanism for selectively supplying a driving force from the driving source to the carrying mechanism and the elevating mechanism;
• and
• a photodetector for detecting the presence/absence of the disc-shaped recording medium on the plurality of placement members housed in the housing unit.