Technically speaker there is no such thing as region zero. This is a designation used to indicate that a DVD was not encoded with a region flag. This way, it will pass the testing of any DVD player and, that is, you can play it in any region. Although your DVD player can read a disc from another region you still have to be concerned with the video format used to create the DVD. For example, Region 1 discs are made with NTSC while Region 2 and some region 4 use PAL. You will also need either a video format convert or a DVD player with a converter built in to make sure you can play discs from other regions.