I know this thread is really old but I can tell you the Mega 8 exists and it's not that uncommon here in Germany. I use this thing since years and have a link to a german users manual including the ever helpfull codelist:

[Link: mitglied.multimania.de]

The top line(1-4) is the manual, but I don't know if it'll be helpfull to you because it's in german. The bottom line(1-9) is the codelist.