System for controlled download of MP3

have clients that sell their music online through download. for the full CD's we currently have the group of MP3's in a zip file that is available for the user to download after purchase. The issue is that if someone wants to purchase on their phone and direct download - many people struggle to be able to extract a zip file and place file on their phone internal storage. We are trying to figure out if there is a way to take a group of MP3's and somehow do a controlled download through a web page link that would take care of this issue. We are using asp classic / vb script / javascript - would like something compatible