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......The file names must have the extension “.mp3”. Alternative specifications such as MP3 Surround or similar are not supported. Plug a card reader (with a USB cable) or a USB stick into the USB port on the TV set (see page 5 and 6). Starting the MusicBox Call Assist+ menu. ....Mark MusicBox, OK continue. If there is only one memory medium the MusicBox is started with the MusicBox list (see right column). If several media are available select with .... memory medium and then with,, OK start Mu