I noticed the JNMS / Maxi-MMC link from the CD-i player type table in the July 1996 issue of The Interactive Engineer (it’s on the ICDIA site) turns out I had misinterpreted the Board column on page 4 (there’s also an error there: the 601/602 certainly do not have the 180 board!).Īfter noticing this I did some testing and it turns out that the CDIC modifications needed for the 180 also work for the 601, including the TOC reading problem. The link between the JNMS and Maxi-MMC boards is the CDIC chip: both turn out to have the same older CDIC chip version that differs in a few details from the version used on the Mini-MMC and Mono-I boards players (I described these differences in the earlier “CD-i 180 disc playing” post). From the emulation point of view it is virtually identical to the Mini-MMC board used by the CDI 605 player, but it has a different CDIC chip version.
The Maxi-MMC board is the one in the CDI 601 and 602 players. It is not used in any other player and contains a CDIC (CD Interface Controller) chip but no SLAVE processor. The JNMS board is the one in the CDI 180 player (also called the JNMS player). I had previously erroneously identified these two boards but they are different. This weekend I fixed some disc emulation issues for the JNMS and Maxi-MMC boards.
