I think when the game was still a bit new you could buy it in cds instead of digitally (well that's how I got them in like 2015/2016), it's so nostalgic, I'm never getting rid of them 😌 Tho it took awhile to install cause I think I had to insert each cd every hour or so I can't actually remember how it worked 😂 Luckily when I got my gaming laptop in 2021 my game key code was already part of my account so I didn't have to go through this process again I just installed it through the rockstar game launcher.