Paul McCartney and iTunes

[Silvereel]

I purchased a few tracks by McCartney solo and Wings not too long ago (early January, I guess) and I was going to get another one earlier today, but it looks like, except for Paul's latest album, a collection of his classical music and some tracks on compilation albums, they have all been removed. Maybe they were removed due to a dispute I some how didn't hear about. They are also gone from amazon it seems. Has anyone else noticed this?