Let's be honest — 'Stop Gap' is essentially a limited interest DVD, and will never sell in its thousands. To make a top-quality standards conversion from PAL to NTSC costs a lot of money, and (with all due respect to our N.American and Japanese friends) it will never be economically feasible to get such a conversion made. So I'm not able to supply NTSC versions to suit DVD player machines. They might work, but I'm not going to guarantee it.
So can't it be viewed in an NTSC country? Well, it is possible, using a computer player program (such as WinDVD or PowerDVD) in either a PC or a Mac. I've therefore decided to recommend that all NTSC-area customers choose the PAL version, on the understanding that they'll probably have to watch it on a computer. You can order a PAL version here.
For a full list of countries and their television standards, click here. Do not confuse this with DVD 'Region Codes' — 'Stop Gap' will play in all regions.