Audio 1 is pretty bad to be honest, the sound quality sucks, like literally.. you need to fill the gaps with your imagination. The second one is a little bit better but still I wouldn't pay more than 500 yens for that, much less 10,000. Actually, I paid 1500 for the Miyuki Umizuki(her coworker) hentai audio that came with a doujin some time ago and that one is 10 times better than this.