There is absolutely no reason a patch to a game needs to be larger than 1 GB EVER. It's inexcusable to make a patch so big that it's literally the same exact size of the game itself.
Well updates to games often come in that size. Depends on what they are patching, like for instance with Space Hulk they replaced a number of the graphical assets and that ended up being close to a GB.
It's inexcusable to not use compression:
Case in point If I was able to compact 27.5GB down into 1.5GB and 11.5GB down to just over 600MB, then there is sure as hell absolutely no reason for an 8GB patch to remain that size...there just isn't.
Just because you might be able to compress some things from 27.5GB to 1.5GB or 11.5GB to 600MB, does not mean that that applies across the board. Some things simply don't compress this is why more and more games are coming in multi gigabyte downloads, multiple DVDs or blurays (for consoles).
