Several community packs exist (often found on flightsim.com or AVSIM) that bundle the default liveries into a single easy-to-install folder, or more commonly, update the default liveries with higher resolution textures .

: Ensure the livery pack includes or points to high-quality sound files specific to the engine type (e.g., PW4000 vs. GE80C2). Animated Ground Equipment

You might ask: Why bother with FS2004 in the age of MSFS? Here is why the Level-D 767 with the all-liveries mod still matters: