What did YouTube do to the sound?

Hi forum members,

Two links to the same music. The YouTube one has awful sound. What did they do to ruin the format there? The other one links through to a decent video and a truly good stereo sound.
First the good one from DailyMotion:

http://video.google.nl/videoplay?docid=4253156773704782964&ei=z0arSPu5OoiCiwK3mMiBDA&q=eric+clapton+my+fathers+eyes&vt=lf

http://video.google.nl/videoplay?docid=4882935506148325614&ei=z0arSPu5OoiCiwK3mMiBDA&q=eric+clapton+my+fathers+eyes&vt=lf

Nobody noticed sound went horrible there, just a coincidence?
I did not imagine this, read here:
http://forums.techguy.org/multimedia/550796-simple-fix-youtube-sound-failure.html

polonus

Sample/bit rate is the usual difference in quality where one youtube upload might be using a lower bitrate which would be noticeable in the quality. So it might not be the

Since I’m a dial-up user and never visit youtube, etc. I wouldn’t notice any difference, but I do know about sample/bit rate as when I used to put audio training/tutorial files in web pages I used to use the lowest bit rate so those on dial-up didn’t have any real issues when streaming the audio file.

So that is the only suggestion I have.

I’m pretty sure video uploaded to Youtube is converted to 64kbps mono sound.