I'm afraid that the answer is vastly closer to "no."
If your CDs include source (not binary) packages, and you have a darwin binary of rpm to install them, and you have a C compiler installed, then you could, with some difficulty, manually recompile the necessary packages.
It would be a huge pain, and would require a lot of futzing. I don't mean to sound condescending when I say that anyone who asked the original question would probably find it to be unaccomplishable.
The previous poster is correct that fink would be a much simpler tool to use to accomplish this task. Even manually downloading and compiling the source distributions would be easier than going from rpms.