1. A multimedia player capable of playing back digital contents, comprising: a menu controller which generates image data for an on-screen menu including a plurality of icons; a display processor which displays the on-screen menu; and a reader which reads, from a storage, a menu item image for a content corresponding to an icon which is selected from the plurality of icons in the on-screen menu by a user, wherein the menu controller updates the image data for the on-screen menu so that the menu item image read by the reader is displayed in the on-screen menu with at least a part of the menu item image displayed on a background of the on-screen menu.