In the USA we don't see region free players so you may have to return it. Now if these are DVDs are from overseas all bets may be off if you can play them on players from normal stores. You may have to search the ebay and such for a region free model. Be aware that such are still not legal here for reasons no one is clear about.

Regions were so that governments could control what the population could watch and for companies that produce content to maintain control.

http://dvd-player-software-review.toptenreviews.com/what-is-dvd-region-lock.html notes RCE was implemented to block region 1 from playing on region free players.

Frankly, what a mess.
Bob