: This is an abbreviation for PlayStation 4, the gaming console on which the game is played.
In the context of game archiving and scene releases, "AU" usually stands for or All Updates , but more frequently in this specific naming convention, it refers to a Gold Standard or Verified dump. "Best" suggests this is a high-quality "fake PKG" (fPKG) that has been tested for stability on jailbroken consoles (typically those on firmware 5.05, 6.72, or 9.00). Key Game Features motogp 19 a0100v0100 cusa14907 ps4 pkg au best
Digital Distribution and Regional Variants: A Technical Analysis of MotoGP 19 (CUSA14907) on PlayStation 4 : This is an abbreviation for PlayStation 4,