DVD iso: PAL ->NTSC

so I have in my possession a DVD, but when I put it into my DVD player the image doesn't appear on the screen (other DVDs work obviously, and the disk I have isn't a pirated copy). So I assume it must be a PAL disc but I'm not sure. So I DVD-decrypted it onto my HD.

1)Is there a program to determine whether its PAL/NTSC
2)If it is PAL, could you point me (weak google-fu) towards a guide or program that could convert it to NTSC (yes I realize I'll have to crop the image or something - won't be a clean convert)

-thanks in advance

try something like DVD shrink, I'm sure that must have an option to convert to NTSC.

Easy way of telling if a REAL dvd is pal : look on the DVD. It should have a BBFC logo on it saying either U (green triangle) PG (yellow triangle) or 12,15,18 (all circles).