Script to extract some files from WoW's CASC system. Dependencies: Penlight, LuaCASC (http://www.townlong-yak.com/casc/).

output.txt

Build:	b052c744ab97188cc23b0097f349f39c	http://dist.blizzard.com.edgesuite.net/tpr/wow	3a8b8002b73063d2377159f586b05e00 Handle:	table: 0081FA10
No content for Sound/Item/Weapons/Gun/GunFire01.ogg
No content for Sound/Item/Weapons/Gun/GunLoad01.ogg
No content for Sound/Item/Weapons/Gun/GunFire02.ogg
No content for Sound/Item/Weapons/Gun/GunLoad02.ogg
No content for Sound/Item/Weapons/Gun/GunFire03.ogg
No content for Sound/Item/Weapons/Gun/GunLoad03.ogg
No content for tos.html
No content for DBFilesClient/FileData.dbc

WoW_CascExtract.lua

-- Script to extract some files from WoW's CASC system
-- Dependencies: Penlight, LuaCASC (http://www.townlong-yak.com/casc/)

local SAVE_PATH = "C:/Users/MyUser/Documents/NewWoWSounds/"

local dir = require("pl.dir")
local path = require("pl.path")
local casc = require("casc")

local buildKey, cdnBase, cdnKey = casc.localbuild("C:/Users/Public/Games/World of Warcraft/.build.info", casc.selectActiveBuild)
if not buildKey then
	-- Could not select a local build; query the patch server instead
	buildKey, cdnBase, cdnKey = casc.cdnbuild("http://us.patch.battle.net/wow/", "us")
end

local handle = casc.open("C:/Users/Public/Games/World of Warcraft/Data/", buildKey, cdnBase, cdnKey)
print("Build:", buildKey, cdnBase, cdnKey, "Handle:", handle)

local function SaveFile(filepath)
	local content = handle:readFile(filepath)
	if not content then
		print("No content for " .. filepath)
		return
	end
	
	local fullpath = SAVE_PATH .. filepath
	dir.makepath((path.splitpath(fullpath)))
	
	local file = assert(io.open(fullpath, "wb"))
	file:write(content)
	file:close()
	print("Saved " .. filepath)
end

for i = 1, 3 do
	local basepath = "Sound/Item/Weapons/Gun/Gun"
	SaveFile(("%sFire%02d.ogg"):format(basepath, i))
	SaveFile(("%sLoad%02d.ogg"):format(basepath, i))
end

SaveFile("tos.html")
SaveFile("DBFilesClient/FileData.dbc")