Here in Brazil the game was launched with pt-br subtitles, and after some time, they launched with pt-br audio.
Considering that is an official launch (and i have it) is there a way to upload the needed files to be added in the game officially?
Considering that ever today we at Brazil "fight" for any kind of localization, the fact that this old game indeed received an official (or licenced, i don't know) pt-br, it will be a great proud for game preservation that this could be added and be available for any people that ever played this classic game in portuguese.
In affirmative case, just tell me what files i need to extract from the media and where to upload it.

I also have the portuguese media (audio) for the expansion (Mysteries of the Sith), so the same question applies to the expansion.

unrelated directly to your topic.

If you mean you have real disc. You can make disc image by Alcohol or Alcohol Portable in mds+mdf format and upload it to Internet Archive, as well as manual and local version patches if there is such and you still have them (or no known local version patches).
Also, did it include PT-BR or PT-PT. You know, Brazil got both variations (one is copies of EU discs with local package+manual) as well as english discs from NA (ESRB labels).

Add to description also info if you know it was original or some re-editions (budget/covermount). Working side disc ring info or publisher info from package.
And maybe there is already same editions there on Internet Archive? Or truerip or redump set packs, partially available on Internet Archive as well.

I have the phisical media and have a disc reader with me. The game comes with the big box with manual and other things. Seems like the seller in Brazil (who has the rights of the game) first launched a version with only subtitles PT-BR, than a second version with full PT-BR audio and subtitles.
So if is possible, i would really like to see the GOG version (or other versions like Steam, etc) have it updated to include officially the PT-BR audio and subtitles.
I think that i already found at Archive.Org the PT-BR media, but seeing that on GOG for example would be the best of the worlds (buy it officialy with GOG features and patches AND have the PT-BR option from the GOG launcher).