Saving artwork and metadata directly into media folders will put them in a place where they can be easily edited and help reduce the size of the server's data folder.
Media Browser recognizes images from most major media applications. Choosing your downloading convention is useful if you also use other products.
For videos that don't already have images, and that we're unable to find internet images for. This will add some additional time to the initial library scan but will result in a more pleasing presentation.
Extracting chapter images will allow clients to display graphical scene selection menus. The process can be slow, cpu-intensive and may require several gigabytes of space. It runs as a nightly scheduled task at 4am, although this is configurable in the scheduled tasks area. It is not recommended to run this task during usage hours.