Will this work to extract incremental files from a release?

We have a baseline of code, the developers have been making changes in a copy of the baseline.  I'd like to extract just the files that have changed, and copy them to CD for delivery. 

Posted a question earlier, but got no response.

Came up with a possible solution...will this work?

Created a new local repository containing the source stream.   Then, I clicked show all history.  Once the history changesets were displayed, I right clicked and said "open in change explorer".   Once they were in Change Explorer, I highlighted them all again, right clicked, and said "new patch".  I saved that patch to a file.

Then, created a new empty repository and clicked "project, appy patch".

Is this a viable way of extracting the changes?