[xbonez]

the sony ns11 series mp3 players and other simlar artificial stuff's capacity drops a lot after fromatting. however, even before formatting the entire space isn't available. u can only avail the space that actually exists on the player, which is what is shown after formatting.

format your player. if space does reduce, simple contact the dealer. he sold u a 4gb mp4 player. anything less means he cheated u