We need to replicate the i-tunes software from apple. Users will download mp3's infos from a mysql database on the net and will be able to hear a 10 secs preview of a song streamed from our web archive. Then if they'll like the songs chosen the y will be able to buy them by credit card. The gui will be based on template and will be possible to personalize and to change skins.
Please refer to the i-tunes software for more details, try to download it and see how it works for more details.