For reference, that rule also applies to sites like Wikipedia though for them, an actual source is usually linked which makes it much easier to deal with - you can use Wikipedia to do your research and then just link to the source they link to, assuming it matches up. TCRF is 100% fine but more an exception to the rule as it's still user-editable but as you said, with much better quality control.

Yeah, that looks good.

Also, just to correct my earlier remark, the rule was specifically against fan wikis; the Cutting Room Floor is permitted as a source because it tends to have stronger quality control. I mention it because I and others have cited TCRF plenty of times in the past, and because it includes documentation of regional differences between games (though the Super Mario RPG remake doesn't have a page there yet).

I was aware of that rule, but even with different Google queries I found different sources hard to find, so I inserted this as it was the best I could find.

After looking through some more sources that were used for other trivia, are YouTube videos containing gameplay in those languages valid sources instead?

EDIT: I've found videos from Nintendo's official YouTube channels in Dutch and Spanish containing the localized save blocks. I will be adding those to the sources, though I will keep the MarioWiki reference because it is where I got the Spanish translation for "to save" from.

IIRC wiki sites aren't recommended as sources because of their malleable nature. Would be ideal to find more reliable sources if possible.