Patent ID: 7260041

Claim:
A disk drive comprising: a first disk rotating mechanism for supporting and rotating a first disk on which data can be recorded and/or reproduced by a first optical beam; a first optical head emitting the first optical beam to perform a recording and/or reproducing operation on the first disk; a first optical head moving mechanism for moving the first optical head in the substantially radial direction of the first disk; a second disk rotating mechanism for supporting and rotating a second disk on which data can be recorded and/or reproduced by a second optical beam; a second optical head emitting the second optical beam to perform a recording and/or reproducing operation on the second disk; a second optical head moving mechanism for moving the second optical head in the substantially radial direction of the second disk; a transport base on which the first disk rotating mechanism, the first optical head, the first optical head moving mechanism, the second disk rotating mechanism, the second optical head, and the second optical head moving mechanism are mounted; a disk tray conveyed to a first tray position in which the recording and/or reproducing operation is performed on the first disk, a second tray position in which the recording and/or reproducing operation is performed on the second disk, and a third tray position in which the first disk and the second disk are set onto the disk tray or taken out of the disk tray; a first disk tray conveying mechanism for conveying the disk tray in a first direction which is substantially perpendicular to a line connecting a rotation center of the first disk in the first tray position and a rotation center of the second disk in the second tray position and which is substantially parallel to the first disk surface and the second disk surface; a second disk tray conveying mechanism for conveying the disk tray in a second direction which is parallel to the line connecting the rotation center of the first disk in the first tray position and the rotation center of the second disk in the second tray position and which is substantially parallel to the first disk surface and the second disk surface; and a disk distinction device for distinguishing whether the set disk is the first disk or the second disk when the disk is set on the disk tray, wherein the first disk tray conveying mechanism and/or the second disk tray conveying mechanism conveys the disk tray to the first tray position or the second tray position according to a result distinguished by the disk distinction device.