extracting files from an ISO image

[Paul Greene <pauljgreene comcast net>]

I downloaded Redhat 7.3 and burned the 3 cd's; disk 2 seems to have been 
a defective burn. So, I re-downloaded disk 2 again.

Rather than burn a new cd, is it possible to just extract the needed 
files from the ISO image? Does such a utility exist?

PG