Where is this file going.......

attached is a link that offers streaming radio audio. I have been trying to see if I can capture this audio. I have been directed towards soundflower, but thats useless unless you have some recording feature that really expensive. Audio Hijack is nice but really expensive, and jing only offers video but poor audio quality

This stream seems to be saving somewhere because you can go back for as long as you have been listening. So where is it saving?

I try looking for something in activity window but nothing....