The music files you purchased from iTunes store are under DRM protection. You cannot play them on your own mobile devices other than iPod and iPhone. You cannot convert the DRM protected music files to MP3 or WMA directly with iTunes media player, either. However you can burn the protected music files to CD-R or CD-RW disc to make an audio CD and then use some CD ripper software to convert the audio CD track back to MP3, WAV, WMA, etc. And iTunes allows you to burn the protected music files to CD... read more
