Sony's IVO-10 "Portable CD-i Viewer" (The Intelligent Discman) was the only physical Japanese non-Philips CD-i player that was actually released in Japan

Another Sony CD-i player popped up, this time a complete set including the original manual, we don't see that often. The manual shows how to install the timekeeper battery, which is a separate battery holder for a CR2032 battery instead of a baked chip with integrated battery. Sony released in the USA in 1992 the Sony IVO-11, together with the IVO-10 in Japan, two Intelligent Discmans that were in fact base-case CD-i players. It featured the same CD-i logo that was used mainly in Asia, in titles that were published by Japan Interactive Media. Sony had its own names for the CD-i nomenclature: This was a Portable CD-i Viewer. It is still an interesting piece of history in the world of videogames and multimedia technology: Together with Philips, also Sony and Matsushita (Panasonic and others) were involved in the development of CD-i, but in the end this Sony CD-i player is the only physical product by one of the Japanese companies that actually was released. We've heard of some prototypes by Panasonic and of one of their other brands: Sanyo. But these remained prototypes. This Sony IVO-10 was actually released in Japan. Most Sony CD-i players that we see these days unfortunately don't work anymore: The screen has degradated a lot and capacitors started leaking. We've never seen before anyone trying to repair the timekeeper battery of a Sony CD-i player. We have one in the Home Computer Museum in Helmond, although this one also does not function anymore...