We claim the ornamental design for a reinforcement member for optical storage media, as shown and described.
FIG. 1 is a top perspective view of a reinforcement member for optical storage media of the present invention; and,
FIG. 2 is a top view thereof in a closed position.
The ornamental design which is claimed is shown in solid lines in the drawings. Any broken lines in the drawings are for illustrative purposes only and form no part of the claimed design.