I just discovered that none of the music that I purchased through the iTunes store before about 2009 will play on my iPhone. I have gotten no satisfactory answer about why this has happened. Additionally, I have been informed that if I want to try to re-download the music, I will have to re-purchase it. I have also not yet received a satisfactory answer as to why this is the case.This has made me exceedingly grumpy, as you can imagine.