You can copy them.

I have not burned copies from my Southtree discs but it was very simple to move the mp4 files from the disc they sent to my desktop. From there I imagine you can burn as many as you like.

I've made dvd copies to send to relatives.

Sorry I have not tried it but I would take James' answer until proven otherwise. It does sound like a way to protect their business and make you come back for more if you wanted extra copies!

I don't think so... they fix it so there not recordable in order to make you order extra copies