Jazz recordings etched into old x-ray film

Kevin Kelly’s Street Use blog has an article about jazz recordings etched into old x-ray film – “In the USSR and Eastern Europe in the 1950s underground night spots would play music pirated from the west. The only media they had were recorders etched into discarded X-ray film. I’ve long sought some images. Researcher Camille Cloutier pointed me to these, collected and posted by József Hajdú.” [via] – Link.

Related:
József Hajdú’s collection – Link.