Question about confusing network download speed

[jimdagys]

I have Process Explorer ( see screenshot) that says my download speed is 21.6 KB. According to the unit converter at :
http://www.numion.com/calculators/units.html
21.6 KB = 172.8kbps
I have nothing else running and am ripping (with Streamripper 32) a 128kbps stream (http://vprclassical.streamguys.net/vprclassical128.mp3) that indeed downloads as 128kbps ( see screenshot)
So my question is, why does Process Explorer show the download speed as 172.8 kbps when I'm ripping at 128kbps?

[DB83]

The bit rate of the mp3 has zilch to do with the bitrate of the internet transmission.

if the mp3 had a bitrate of 448kbps you would still download that at your max of 172kbps.

[hello_hello]

Assuming you are downloading at 128kB/s, that possibly doesn't include any network overhead, whereas Process Explorer may display data plus overhead as the download speed.
As an example, I'm currently downloading a torrent at 175kB/s. According to uTorrent, only around 162kB/s of that is actual data. The rest is "overhead".