It’s no secret that the iTunes Store is so tightly integrated into the iTunes application that it’s almost as though they were Siamese twins. As your local copy of iTunes has become increasingly linked to Apple’s cloud, it has become dependent on internet access.
But what if you don’t have internet access? Your connection is down; or your router is broken; or you simply don’t want your computer to connect to the internet? Well, iTunes will remind you of this, over and over and over. In such a case, iTunes will pop up an alert every single time you play a song and every time one song finishes and another one begins.
Read the rest of the article on Macworld.