english: It's a very simple exercise: Buy a song on iTunes, write it to a CD, then rip the CD to an MP3, and play it on your very same computer.
non_english: Ovo je veoma lak poduhvat - kupite pesmu na Ajtjunu, narežite je na CD, onda prebacite CD na MP3 i pustite je na tom istom kompjuteru.