Just came across a documentary film you can watch for free, Grindstone Redux by Andy Szava-Kovats, the guy behind Data-Bank-A. The movie assembles interviews by american cassette culture activists of the 80’s and gives an impression of the creative power this network set free on a worldwide basis.
I noted with interest the bizarre interiors some of those people live in – I mean, who would hang a prominent Maxell cassettes logo on his wall?