World of Warcraft + expansions gamerip ost

Can someone tell me how to extract the OST as a gamerip from the World of Warcraft games?

1. you have to download MPQ editor
MPQ Archives – Downloads (http://www.zezula.net/en/mpq/download.html)
2. Install it
3. After that you start this program
4. look for "Open MPQ" and then choose the file. (World of warcraft files with exapnsion mpq are located at folder "Data" and "Updates"
5. Then you choose "Sound" and there you have other folders.
6.choose wanted folder and then ram F5 ("Extract") or click the right side of mouse and there you see extracted so click this title.
7. your music will be saved at folder called "Work" (one of MPQ editor’s folder)

thanks a lot, way easier than I expected!