Here's a good site for you: See the link to DVD FAQ.
Media Center,O'Neill Library
On Wed, 16 May 2001 09:15:44 -0700 (PDT) "Jan Derks, Collection
Development" <firstname.lastname@example.org> wrote:
> Does only one international format for DVDs exist or are there multiple
> formats such as the PAL and the NTSC formats for VHS? If a DVD is
> purchased from a European country, can it be played on a DVD player in
> the U.S.? Thanks in advance. ~ Jan