Abstract: A plastic disc holder for holding a plurality of discs separately, comprises axially opposed end walls; and laterally opposed side walls which are united with the end walls to constitute a rectangular parallelopiped box which is fully opened at upper and lower portions. Each side wall includes spaced side posts; an upper beam extending between upper portions of the side posts; an intermediate beam extending between intermediate portions of the side posts; a lower beam extending between lower portions of the side posts; first group of strut portions which extend between the upper and intermediate beams; and second group of strut portions which extend between the intermediate and lower beams. Each of the intermediate and lower beams is formed at an inner surface with a plurality of guide grooves for guiding the discs when the discs are put into the disc holder from the above.