Sure sounds like copywright infringement to me, heck if I wasn't on dialup I could download your entire CD without paying a cent/or a penny. As it is I could do it in a week or so :)
The poster obviously cares more for his reasoning to put them up, than he does about your rights and inertpretation of the material
I would have them all taken off then put back a "partial" one of my own if you want the publicity.
Good sounding CD though.
JohnB.