A disk recording and/or reproducing apparatus in which a disk-shaped recording medium such as an optical disk is able to be transported between a disk loading portion for recording and/or reproducing information and a disk entrance and exit slot into and from which the disk-shaped recording medium is inserted and ejected. The disk recording and/or reproducing apparatus includes a pair of transport rollers which can hold the disk-shaped recording medium in the diametrical direction and a drive means for rotating a first transport roller of the pair of transport rollers and wherein a second transport roller of the pair of transport rollers is fixed and the drive means rotates the first transport roller to rotate the disk-shaped recording medium by rotation force so that the disk-shaped recording medium is transported between a disk loading portion for recording and/or reproducing information and a disk entrance and exit slot.