Does anyone of you here know that how Apple set up their DRM systems for itunes?? I'm just very curious about how they can allow only authorized computers to play the songs after they've been sold. Do you guys know what software or hardware do they use?? I heard that apple writes their own DRM software, is it true?? Still, how does the whole process (buying song, downloading the song, paying the fees, getting license) work?? humm, this is very interesting....anyone's comments are greatly appreciated, thank you so much!!! =)))