Gateway MP3 Photo Jukebox User Manual page 87

Transferred music does not play
If you transfer music with Windows Explorer instead of Windows Media
Player, the jukebox will not recognize the music. To transfer music to your
jukebox, you must use Windows Media Player.
When I try to play a song, I get the message "To play this track,
you must sync your device to your PC."
If you use a music service where music can be played for a limited amount
of time (such as Napster To Go), the music will eventually "expire" on your
jukebox. Re-sync with your computer to access the track again. For more
information on syncing with your computer, see "Moving files to your
jukebox" on page 46.
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