I will be releasing an album within the next month. My plan is to release it via mp3 download but the mp3 purchase will include a copy of the physical album which will be released at a later date. For example, the mp3 version will be released say February 1st but the physical copy of the CD will not be available until April 1st. If you buy the MP3 album online you will automatically receive the physical CD around April 1st (for no extra charge). How would I go about setting your pruduct up to where customers can purchase and download the mp3 album immediately but they will somehow be able to input their shipping address so that I will know where to send the physical CD when it becomes available? I hope that makes sense. Thank you!