A great short documentary about music, often banned, which was copied onto used medical x-rays in the 50s in Russia. the doc includes interviews with the folks who helped make and distribute the x-ray records.
"The iconic images of gramophone grooves cut onto x-rays of skulls, ribcages and bones have captured the collective imagination way beyond the music scene. Now for the first time, the complete story of the Soviet x-ray record has emerged, as told by the people who made it happen."