Yes….almost all PAL players worldwide will play NTSC discs. There are a few exception models which I dont have in front of my right now. The only issue you might run into is if someone has an older TV
Gawd! You you imagine what would happen if people in Hong Kong and Singapore couldnt watch their pirated NTSC discs? 🙂 Not that all pirated stuff is NTSC but a large majority of it is.
I personally have at least 300K NTSC units Ive authored floating around Europe with no issues.
Make sure your regions are Open. Remember when the Predident presented a disc to the PM which didnt play? The region settings were wrong. 🙂