A disk tray includes a storage concave portion that is to store a disk-shaped recording medium. The disk tray is supported by a carrying mechanism to thereby be carried from an opening portion provided to a front face of an apparatus main body (main body of an apparatus for storing the disk tray) over a range between the inside and outside of the apparatus main body, the disk tray comprising. The disk tray further includes a buffer material provided on a peripheral surface of the storage concave portion that stores the disk-shaped recording medium. Thereby, the disk-shaped recording medium, such as an optical disk, is restrained from being crushed even when being rotationally driven at high speed.