As someone whose career so far has been mostly stills, this is an area that is so troublematic (to coin a word) that many of the videographers I know of simply state they do NOT take much more than a few crucial moments of audio at weddings, but use the visuals placed over either rights-free or paid-for music. Recording sound with a camera rarely gets GOOD sound, using a remote like the Z-H1 means a TON of matching clips to audio footage. In other words, hours of post just to match the dang things before you even begin editing for content/appearance.
Best wishes ... I've not heard of an "easy" way to do this, but I'll certainly be watching to see if someone here has a good idea ...
neil