Meanwhile, here's an example of the performance gains you can get (in read performance, anyway) if you use compression: Why can't it stay compressed? You save disk space with no sacrifices. The game looks and plays as intended, yet, it took up less disk space to get it. Notice how the download is several GB smaller, yet, the quality of the textures and audio didn't suffer at all.
Go and download a very large game any large game. Regardless, you can effortlessly prove it yourself. Click to expand.The inverse could be requested too: what is the problem with lossless compression?
