Google your DVD player's make and model to see if it's hackable. I did that for mine and found a 'cheat code" (for want of a better word) that I could key in to the remote to make it a multiregion DVD player. Now my $99 DVD player will play DVDs from anywhere in the world in both PAL and NTSC format. Many 'multi region, multi codec' DVD players for sale cost double that.
That's another issue to be aware of in addition to region encoding, by the way. Make sure your DVD player (and TV
for that matter) will cope with both PAL and NTSC formats. Most modern, newish equipment will.