hi.
since your sreen support high resolution
and your graphic card,i think there will not be any problem playing hd movies.
the player will play the launched file.
u can also try other player like
windvd 8.
WinDVD 8 can navigate and decode MPEG2 Transport Stream video so users can watch captured HDTV programs. WinDVD 8 also provides navigation tools so users can easily select content to view.
for me its superior player.
give it a chanche
http://intervideo.com/WinDVD/