I am fed up with Aperture, and interested in testing out LR. What is the safest way for doing this without risking my photos and metadata? Will LR import master files, and if I don't like LR, will I be able to return them (relatively) easily to Aperture? Should I start with an old library, and am I able to select the library I want to use? I have heard others have had problems with this.
Any thoughts are appreciated.