what is the function of display with Non-Square pixels?

DataMeister wrote on 1/28/2002, 7:31 PM
What is the point of having Vegas Video display with non square or square pixels in the preview window? On my computer the square pixel option gives the closest image to a normal television aspect ration. I can't figure out exactly why one would need to display the video at wider than normal widths. Can anyone shed some light on this subject for me?

Thanks.