It may have less to do with whether the camcorder was PAL or NTSC but whether the actualy Bluray Player can playback AVCHD discs
AFAIK, the PS3 can ( regardless of region of camcorder) and Most Sony BD Players ( but not all)
Samsung, Panasonic or Pioneer BD players may not support AVCHD discs unless specifically stated to do so
If however it proves to be a PAL/NTSC issue, it should be easy ( during the output stage ) to specify "NTSC" region output in software ( I just tried it with Nero Vision 5)