[dogscoff]

Win media player 8 plays back DVDs, but it sucks- the controls are, well, practically non-existant. You can't rewind/ ffwd except to the previous/ lnext chapter.

Personally I use windvd from intervideo (came with the laptop.) If you don't have that, look on the web for some freeware media player, you can bet there will be a few decent ones about.