Flexi disc
Videos
The flexi disc is a phonograph record made of a thin, flexible vinyl sheet with a molded-in spiral stylus groove, and is designed to be playable on a normal phonograph turntable.
Flexi discs like this Interface Age "Floppy ROM" program sheet were occasionally included as inserts in computer hobbyist and video game magazines during the late 1970s and early 1980s.
Vivid blue flexi disc in "Krugozor" magazine
Ribs (recordings)
Videos
Ribs, also known as music on ribs, jazz on bones, bones, bone music or roentgenizdat, are improvised gramophone recordings made from polyester X-ray films. Mostly made through the 1950s and 1960s, rib
Flexi disc
…Because of a shortage of vinyl recording material (and official censorship of some Western music) during the Soviet era, bootleg recordings known as Ribs, Bones or roentgenizdat were produced on discarded medical X-ray prints. The musician Stephen Coates of UK band The Real Tuesday Weld has created the…
"Rock on bones" Gramophone record (USSR, 1950s). Gallery "Vinzavod", Moscow