Complex sentence: The track packs are fully functional stand alone games and do not require separate "Rock Band" titles to play; however, on consoles that support downloadable content, the songs from these packs can be integrated with other "Rock Band" titles.
Split into simpler sentences: The track packs are fully functional stand alone games and do not require separate "Rock Band" titles to play. However, on consoles that support downloadable content, the songs from these packs can be integrated with other "Rock Band" titles.