I don’t know what kind of discs they are using other than their claim to be dual layered 50GB discs with a special water and scratch resistant coating. For me $20 per disc doesn’t seem egregious, but as I said, if a member here would like to spread some holiday cheer my way, my PM is open. 😉
What, you mean something like these from Amazon - https://www.amazon.com/PlexDisc-Resistant-Printable-Blu-ray-Spindle/dp/B016LTAX7I/ - $26 for 10?