This was brought to my attention by
yellow-qin in an update.
The first
Pioneer CLD-70 sold in Japan in 1987 was not compatible with the new CDV format. The sticker only shows
CD LD.
Later the
Pioneer CLD-70 was upgraded with the CDV extra circuitry but kept otherwise identical.
Sticker then showed
LD CD CDV. Older models could be upgraded by Pioneer to handle CDV as well.
Julien