Can anyone tell me the purpose of the Most Played, Recently Played, Recently Added categories in the Music Player app? I have audio files of teaching in my play list. Each file is about an hour long. If those files are showing up in each of the above categories in addition to my playlist, isn't that just eating up the memory on my card? Are those files actually stored three different times? When I delete them, they just show back up the moment I listen to a file. If they are eating into my memory card, how do I alleviate that?