TitleBG.pack
TitleBG.pack is a SARC archive which is found in Content/Pack. It contains frequently-used files that the game keeps loaded into memory in order to access them faster.
Folders
Many of the folders in TitleBG.pack are the same as those in the base Content folder, and behave in the same way. However, it also contains some new folders.
Actor
AnimationDrivenSpeed
Contains AnimalUnitSpeed.bin and NPCSpeed.byml.
Camera
Demo
Effect
Event
EventFlow
Map
Model
Quest
Sound
Terrain
WorldMgr
Contains normal.bwinfo, which contains parameters for the game's environmental and weather settings.