Multimedia content of exchangeable storage media may be extended by bonus content downloaded via Internet and stored on a local storage. An improved method for composing an electronic menu for playback selection that integrates different menu items relating to on-disc content and downloaded content provides flexibility and a simple, low cost solution. The method comprises generating an initial menu having an invisible placeholder from a first portion of menu data retrieved from the exchangeable storage medium, extracting a first attribute associated with a second portion of menu data retrieved from the local storage device, comparing the extracted first attribute with a second attribute associated with the placeholder, and if both attributes match, replacing the placeholder with a visible and selectable button defined by the second portion of menu data. The second portion of menu data comprises command data, button image data and button chaining information.