As Far As You Know

One of the ringtones I recently purchased on the iTunes Store--"Speed Of Sound" by Coldplay--refused to sync with my iPhone. When I would sync the device, I was told the song file was not authorized on my computer--which I knew wasn't true, as it was a non-DRM iTunes Plus file. The solution presented itself after a Google search: all I had to do was play the ringtone file on my computer and the authorization would be confirmed. I did that and the file synced right up to the iPhone. Voila!