… Say I need to download an update file to use CoD. It will spend some time downloading the file, then it spends even longer “copying” the file. I don’t get it… I already have the file. How in the fuck could copying the file get me something that I don’t already have? Why can’t I just use the file I have already, that I just got??? Why can’t it just use the downloaded file to update?!?! I can’t wrap my head around it. Some software engineer out there… please make me understand how this could possibly make sense!
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To start, you have an installed game package. This contains everything in the game. It is organised in certain ways to make features work or run quicker.
You download the update file which contains a big list of changes (changes to code, new assets, replaced assets, etc) and also where they go on the game package.
The copying stage is where the console takes those changes, edits them into the game package and removes the previous version.
This is slow on PS4, especially for big file size games or updates. PS5 games have a better way of doing it, but it can still take some time to do.
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