Genius!  “…it’s not just geography that’s limited people from hearing rock ‘n’ roll. For those living in the U.S.S.R. at the time, Stalin’s government had totally restricted the dissemination of Western music. But there was one group of people called “stilyagi” (or “hipsters,” as we’d call them today) who were able to effectively distribute and keep such music alive in the Soviet Union using one of the sneakiest, most inventive ways imaginable: They’d press records on disposed X-Rays, which they collected en masse from hospital dumpsters.” – coslive