
Upgrading the internal drive to a faster 7200RPM drive will help make this a little faster but due to what's involved in the process it will never be quick. After it has performed the patch to the file it then moves it back in place overwriting the original file with the new updated file.įor large games with many files changed in patches this process can take a long time to copy the update and it is a CPU & storage i/o limited process. What happens when the PS4 is “copying update” is that it basically has to make a brand new copy of this 20GB file and apply the patches during the copy. It is also good for people with slower internet connections as then the patches do not take as long to download.

Many fixes have been theorized over the years, but if none of those worked for you, this one likely will. This helps to massively reduce download times and to save Sony a lot of bandwidth in update files. The agonizingly slow download speeds of Sony's PlayStation Network are well-documented.

For instance if you have a 20GB file and change a 5MB graphic within it then the bytepatch will be only a 5MB download instead of a 20GB download again for one file. This is basically a small (relatively) file that only contains the changes between files.

To save bandwidth PS4 patches can be delivered as bytepatches.
