What is a dvdscr?

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Question: What is a dvdscr?
I don't know what the difference is between a dvd rip and a dvdscr. Does anyone know which one is best?
Answers:

Hi there. Basicially a DVD rip is usually an exact copy of the original DVD where as a DVD scr (screener) would usually contain a letterbox , but without the extras that a DVD retail would contain. The ticker is not usually in the black bars, and will disrupt the viewing. If the ripper has any skill, a DVDscr should be very good. Usually transferred to SVCD or DivX/XviD.

This site would explain others as well as this in more detail:

www.vcdquality.com/index.php?page=faq