That hack doesn't work in most dvd players ... but it is the easiest way BY FAR to get them to play in a NTSC dvd player so do try it first.
A full PAL-->NTSC conversion guide can be found here:
http://www.dvdrs.net/modules.php?name=Content&pa=showpage&pid=18
Or you could save yourself the trouble and buy a cheap mult-region/multi-format dvd player for $50 and save yourself the headache. 
asus z170-A || core i5-6600K || geforce gtx 970 4gb || 16gb ddr4 ram || win10 || 1080p led samsung 27"