(10-04-2021, 08:20 AM)Kolano Wrote: Those final 2 characters indicate the games publisher...
https://wiki.dolphin-emu.org/index.php?title=GameIDs
The first 4 are sufficient to uniquely identify things, so they are sometimes omitted. I think there are also some particularities around how the values are stored between disc images and downloads that result in these discrepancies.
On discs the publisher ID is stored immediately after the 4-character game ID, which I guess resulted in people assuming that the two are one combined ID. In downloaded titles they're not stored adjacently.