I have only been using media fire to download maps for LEGIT RPs on this site. BEWARE everybody here has been using media fire for file transfers but since I started using the site to download maps, viral downloads have shown up as pop ups and imitated my software, (my virus scanner, my java update, I-tunes etc.), and I have only had that problem shortly after a media fire session. So be careful guys.... (I KNOW the maps I downloaded didn't have a virus, but the pop ups do!)
