The majority of people who have obtained the tunes from outside the house iTunes environment and still have downloaded the songs into their ipods will never be able towards the play the songs. The excuse for this would be the songs is going to be protected by means of MP4 as well as AAC formats so as to prevent track duplication as well as piracy. On the other hand, people don’t need to worry on how to concealed the track into MUSIC format as there exists a simple way to do so. As the songs which might be in playlists usually are mostly is going to be in the formats involving MP4 as well as AAC and in addition they cannot be changed into any some other format using iTunes.