Joe,
I recently dove into this Stanza catalog thingie, the standard they use is calls
OPDS.
I wrote a tool called
calibre2opds that you could use for creating a catalog of your CDROMs, but it would imply that you enter all of the books in a Calibre database, and I don't think it's what you plan to do...
The tool's architecture is modular, and this means that if you have another source of data (other than Calibre I mean) I could maybe write something to use this data in the tool, instead of a Calibre database...
You could write a PHP script to create a catalog, and you'd probably find that the sources of my tool (freely available) can help get you started.
If you need help, or pointers to additional information, please write me an email and I'll try and help you.
You can reach me at dpierron at gmail dot com...
All best,
David.