No DVD decoder found with Pinnacle

Hello,
I just buy and installed a CD/DVD Writer Samsung TS-H552. In the box there is Pinnacle software. I can read normal CDs and DVD content but I can not play the DVD movies. When I wan to play a movie I see the message 'No DVD Decoder found'. When I check (with cmd --> dvdupgrd/detect) then I see that I have a decoder (Pinnacle).
Why will he not play DVD movies ? My computer is 1 year old (XP Home).
Thanks

PS: With WinDVD or BlazeDVD everything is working fine...

Download a DVD decoder from this link below, the package is called K-Lite Codec Pack,
http://mirror.edskes.com/