Sesame Street: Ready, Set, Grover! (Wii)

Scaleform Test
hud_scaleformtest_i1.dds, a "scaleform" test.

"FPO" Images
There are lots of 128&times;128 .dds images that are various pictures with the word "FPO". The pictures range from generic Sesame Street art, to photographs, to buildings, to weird test-looking renders.

Unused Music
gritshifter_temp.wav is some sort of temporary song.