DVD BacUP Problem!

[TaWasNe]

Hi guys still new at this so hope ya can help

i have made a back up of X-men2 which works ok on my home DVD and on my other half's home system as well.

but when i want to watch it on my Computer i have problem

when i use CyberLink PowerDVD ver 5 it starts up ok then error comes up saying DVD-Video playback graph could not be built due to insufficient decoders.

Now if i try it in Windows Media Player 9 i get a prolem with some Square thing on the screen that moves all over the dam pleace(but u don't see it on home systems at all)
here is link you will see it i have marked it.
hxxp://img.villagephotos.com/p/2004-1/582250/xmen2.jpg

yet the DVD flim works on on home DVD noproblem at all.

any help would be great

big thanks in advance