It's not a "source of information" but a "specific example": the robotech RPG manuals (or at least some of them 90's editions, not the main one but the companio

It's not a "source of information" but a "specific example": the robotech RPG manuals (or at least some of them 90's editions, not the main one but the companions) had an appendix where they delved into the differencies between the US and Japanese translations. Looks like not just technical terms, but some plot lines diverted fairly from the original