How do I locate RAW files to export from a managed library?

Question

I have a decade's worth of managed Aperture libraries. The majority of the Masters are jpeg files but at least 30% of the originals are raw files. I am wanting to change to a referenced library structure which is accessible from other applications. Can anyone tell me how I can tell, from within Aperture, which projects are raw based and how to retrieve these raw image files? I expect there is a simple answer which will prompt a "duh" and a forehead slap but it is eluding me at the moment. I know that if I open the library package and rummage around I can locate raw files but the context is lost and often utterly confusing in the arcane folder structure Aperture uses.

Answer 1

You can create smart albums or searches in Aperture to find all images with RAW original files.
Use the command:   File > New > Smart album
Then add a rule from the "Add Rule" drop down menu to the Smart Settings HUD:
"File Type is RAW"
and click the checkmark next to the rule.
This will show you all images that are RAW.
Just to be sure, you know, that you need to be careful not to move or modify referenced images in any way by accessing them from other applications, right?