Could it be then that the 320 K mp3s out of a vinyl would sound better than the ones taken from the CD?
I'm not sure what you mean by this?
Do you mean ripping the vinyl to mp3 or do you mean a free download of the mp3 that you sometimes get when you buy a vinyl record?
If you mean the first one, the rip that the original poster had up on youtube was definitely better, it was a different mix than the cd, guitars where in different channels, different parts where clearer etc.
If you mean the second one, then that would depend if the free download actually came from the mix that was made for the vinyl. I suspect that it would likely just be the same mix as the cd.