Understanding Genius for iPod and iPhone

Genius playlists in iTunes 8 are created with preset limits of 25, 50, 75, or 100 songs. When saved Genius playlists are synced to your iPod or iPhone, they will contain the same songs as were present in the iTunes playlist. Genius playlists that are created or refreshed directly on an iPod or iPhone, however, are automatically set to a 25 songs limit. If Genius playlists are created or refreshed on your device, the changes made will automatically sync to iTunes if the device is set to sync music automatically.

If you sync a portion of your iTunes library to iPod or iPhone, in some instances, you may be unable to create a Genius playlist with some songs using your device. You may see one of the following messages:

• "This song does not have enough related songs to create a Genius Playlist"
• "Genius is unavailable for the selected song"

If this happens, try making a Genius playlist with those songs on your computer. If you can make a Genius playlist in iTunes on your computer, then it is likely that there are not enough songs on your iPod or iPhone that go great with the desired songs. Try syncing more of your iTunes library with your device. If you are still unable to make Genius playlists from those songs, consider making Genius playlists in iTunes first, then syncing them to your iPod or iPhone.