I read that Quicksell supports selling MP3 on a website. How does this work? I would like to sell MP3 on my website. The customer should be able to listen to the music for about 30 seconds. After 30 seconds the music should fade out. After paying the customer should be able to download the complete MP3. Is this possinle with Wuicksell? I hope so, please let me know. Thankyou.