|Condorman book + flexi disc set|
Enter flexi discs, the thin, clear plastic records that might be green, blue, or red. These were so cheap that you could pair them with a mini book and still sell them for less than the cost of a vinyl EP. In the late 60s, flexi discs were really thin and floppy, and they were easily damaged. These were known as "sonosheets." Asahi was one of the main companies in the field, and their Asahi Sonorama (朝日 ソノラマ) series included book + sonosheet sets for titles like Ultraman, Mighty Atom (Astro Boy), etc.
|Asahi Sonorama Mighty Atom mini book + sonosheet set|
In this series, the paper was thicker for the mini books, though the internal binding wasn't the best, leading to pages easily becoming separated.
|Mini books were typically around 6-8 pages long. In this Condorman book, the lyrics to one of the flexi disc's songs are on the right-hand page, and a mini story (not recorded on the disc) starts on the left.|
|Condorman "punch sheet" containing one song on each side.|
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