Okay, 

Thank you very much for your ideas about this.

I guess I was wondering if there was a way to not download everything, but
rather to just set Httrack off looking around at a bunch of links that it
finds and follows, and in the process just have Httrack grab the wav files
that it finds, but not all the other stuff that it comes across.

I wonder if such a tool exists.

By the way, Thank you so much Xavier for this great tool of yours. It has
helped me so much when I find sites who are willing to share their resources.

Frew