My c:\camera directory contains about 150Gb of photos and videos, with many years worth of Picasa edits. Generally I haven't used the "save edited photos to disk" function, so what's on disk is currently the original.
I want to move this whole directory to f:\camera.
What's the safest, easiest, least disruptive way to do this? I don't want to run any risk of losing all those edits. I don't really care whether what's on disk ends up being the "original" or "edited" version - as long as what's in Picasa is the edited one.