Database to .xmp for shared folders?

I recently put CS4 on my laptop to do file management, select preference of shots in a composition and work/play with images in general in my raw library and my photo album, etc.... BUT I clearly didn't consider the implications of bridge and settings in a network environment because I'm only just now asking the question:

If I change the settings in CS4 ACR from "save image settings in [database]" to "save image settings in sidecar [.xmp] files" can I force it to 'export' all the setting information from the existing database to new xmp files? Will it do it on it's own? Any other information to assist?

Thanks in advance,
->N