Explain Kunaki's model a little bit if you would - those that use it.

Cost to manufacture look like $1, but shipping is $4.20, correct? Do they keep your CD on file for future orders? That is, let's say I sell 1 CD per week from my website, do you simply order another qty of 1 per week, and provide the ship to address?

I'm a little confused as to how their system works.