How to tell if a movie is ntsc or pal?

any way to tell?

Load it into GSPOT (if its an AVI, mpg or vob) and if its frame rate is 25.0, its PAL and 23.976 or 29.97, its NTSC

Sorry to resurrect this post - but is there a way to tell if a DVD is NTSC or PAL by looking at the .VOB or other files through PGCedit or something?

Also look on the back of the dvd case too as that will say NTSC or PAL on the format.