Agree with dev0 on all points. There are some stand alone programs that will let you see cover art. There was link somewhere in the forums but I do not recall where I had seen it.
There are also some programs that will link to a general cover art folder. Which, in my case, is how I do it. You can also link to art in artist folders.
Screen-shot. You may have other programs which work best for you. This happens to be mine.