You need the MPEG-2 codec installed in the ME PC.
http://www.elecard.com/download/
"PS" wrote
> I have a DVD/CD player that works great on win XP as I can play DVD's in
> windows media without any problem.
>
> When I put it in my windowsME PC Windows Media (same version as XP PC) does
> not play the DVD and there is no dvd tab in "tools", "options".
>
> If I use a free trial player it plays great so I know its working okay. It
> must be a software issue, probably something to do with decoders. Anyone
> know if there is a way to rectify this?.