dsister said:
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i think what he means as there are constants on all the disks, as an example, the main characters textures and expressions must be saved on all disks because they'll be called upon from all disks.
another example would be an overworld map. to work in a video game (like final fantasy 7) the overworld map has to be compelete on all disks so each final fantasy 7 disk only had like 400mb of space (out of 700mb) to put actual content because the data had to be redundant across all the disks to ensure you could travel wherever you wanted at whatever point in the game
without being redundant across disks in this case you would either require no exploration to places you have previously been to (final fantasy 13) or disk swapping to access places that you had previously been to (mass effect 2).







