FIG. 1 is a rear perspective view of a case for portable digital media device embodying my new design;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a front elevation view thereof; and,

FIG. 6 is a bottom plan view thereof.

The left side elevation view is a mirror image of the right side elevation view.

All structures indicated in broken lines form no part of the design sought to be patented.