Various apparatus and methods are provided for positioning and handling
single-sided hard memory disks. A disk carrier is provided with ribs
formed on the inside surface of opposing side walls. The ribs form disk
receiving grooves or channels. The ribs further comprise an alternating
pattern of large and small ribs. The large ribs separate pairs of disks
from other pairs, the small ribs separate and maintain spacing of the two
disks comprising each pair of disks.