Why won't my iPhone play certain CD's?

I've got tons of CD's left over from before I ever got a iPod or the like and usually, once moved over to iTunes, they play fine on any device. After the most recent update all of my albums that I have a physical copy for refuse to play and my phone keeps prompting me to put in passwords as if I'm trying to make a purchase. It's getting fairly annoying and I'd enjoy assistance on this topic.

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