But no! They took old x-ray prints and pressed the records right into them! It's an excellent idea and one my just-awoken brain could not get to on its own.
It's been done with regular pictures, there was a really good article about this that I can't find anymore. However it should be more complicated with x-ray images as they are a different mapping between the disc and the image.
How can this even work? Surely the xray prints are not stiff enough to be used as records.
The flimsy records played just fine!
http://www.npr.org/2015/04/18/400369975/its-thin-its-plastic...