Freesound Forums

I've been designing sound for films for a few years now, and have been a freesound user for just as long. I'm finally getting a good feel for my workflow, and although my current sound library browser is Audio Finder, I plan on upgrading to Sound Miner soon enough. Thing is, I understand what metadata is, but I don't get how it works, what format it's in, how I'm supposed to use it between programs, and finally, how I can get metadata from all the great stuff I've downloaded off of freesound into my sound library for easy browsing. Is that even possible?