Watching DVD's on my computer?

[Hounf of Culan]

So for Christmas I got the complete World at War DVD boxset, which is totally awesome. My problem is that now I want to watch it on my PC but when I put in a DVD windows media player tells me I need to buy an MPEG decoder extension or something like that to play a DVD. So is there any good free legal software out there that lets me watch my DVD's on my computer. I don't need anything fancy or really indepth and technical either, I just want to put my World at War DVD's into my computer and watch them.

[Nanny de Bodemloze]

http://www.videolan.org/

free, versatile, legal, plays everything I've thrown at it - it will work

[Hounf of Culan]

http://www.videolan.org/

free, versatile, legal, plays everything I've thrown at it - it will work

Thanks a lot, I tried it and this works great for me!

[nightwar]

Or google video codec's.

[Ishan]

K-lite codec pack it can run .vob formats.