That is awesome what you have done and is very impressive. I just wanted to let some members know, who may be unaware, if they simply do not care about FPS, audio speed ect and are only being held back by their DVD player not being able to play a PAL disc there are some fast and easy methods to get around that problem.

One is using a free program called vobBlanker.
“Open the VOB files in VOB blanker. Under the title set block (center of program window), you'll see your VOB files. The center column says "video format". My example says NTSC 4:3 720x480. If you right click on the VOB's you want to convert, then select "video attributes", you'll see a new window pop up. In this window, you can change the "standard" from PAL to NTSC and vice versa. You can even change the resolution in this window.

Do the above, then select or make a new output folder. Click on "process" at the bottom and let the conversion begin. You can then use DVD Shrink or any other compression/burning program of your choice to burn your newly converted NTSC or PAL DVD (whichever you chose to convert to).”

Source SadSac from afterdawn

I’ve tried this method and it did work for me. There are several other quick and easy ways to go about this
http://forums.afterdawn.com/thread_view.cfm/207123

I know you are attempting a proper and official NTSC conversion but for those who simply want to watch this DVD regardless of conversions and what not this could make it very easy for them. That’s not to say you should ditch your efforts or makes your efforts and less meaningful, especially since those quick fixes sometimes do not work for all NTSC DVD players.