For some time now, I have been having an issue where iTunes is not letting me permanently change the album artwork on a few of my songs. In other words, I would go to the info of the song and change the artwork, come back two minutes later and see that it had been changed back. Because I have iTunes match, I thought that might be the problem so I deleted my iTunes library and wiped iTunes match clean. That didn't solve the problem. My only other theory at this point is that the album artwork has been embedded into the actual mp3 file and I need to find a way to un-embed it. Any ideas on what I am doing wrong or maybe how I could fix this? Thank you very much!