For some reason it wasn't on the MCCM cd and nowhere else to be found... So also missing from the official MSX Computer Magazine website. We never even noticed this in over 10 years!
Never mind, this disk doesn't exist. There is a brief text about it on MCM-D55 when selecting the "Recursie" option and in MCM56 there is a text about it in the "MCM's Programma Service" on page 42.
