[Ill preface this post with its my first ever post, apologies if this questions redundant or i sound dumb :-)]

It seems like no matter what im gonna have to sink some cash to get a copy of the game to run, but ill be honest im a bit confused on which copies are allowed.

so from my understanding, i have to use the Official PC version, that has the 3 discs right? just making sure so i buy the right one. everything else seems self explanatory but i just want to make sure im getting the correct copy

again hope im not a bother asking, just a bit confused but i kinda want to dabble in speedrunning this game, hope this message finds you in good spirits :)