Motion control to trigger ir remote

I'm wanting to create an infrared remote that will trigger a DVD player to play a track for a predetermined time then stop the DVD after a time interval. The play and stop cycle will be triggered by a motion detector.

oops sorry wrong post, here: its my blog and it has pretty much all the info you will need to use IR with the arduino in a few posts. mainly, i think;

i also have info about the parallax PIR sensor there for motion sensing.