Not all language packs are created equal. Based on community forums (Evo-Web, Pes-patch.com), here is the breakdown:
For Leo, the summer of 2007 smelled like burned toast and cheap air freshener. He spent it in his friend Markus’s basement, the only light coming from a bulky CRT television. On its screen, two pixelated figures in Arsenal red were performing a one-two pass that defied geometry. pes 6 language pack
Copy the downloaded sound files (e.g., g_sound.afs for German) directly into the dat folder. Not all language packs are created equal
Before downloading any files, it helps to understand where these language files live. PES 6 stores its core assets inside the dat folder of the game’s installation directory. here is the breakdown: For Leo