video not transfering to sd card

i have just purchased a sony dsc h200 camera it takes brilliant picture and i have taken video. the video plays on the camera screen but when i take the sd card out to transfer video and pictures onto my computer, only the still pictures are captured. the sd card is 2gb. if the pictures go onto it, why are the video shots not on the card. 2gb should be enough for a 60 second video?

i would appreciate greatly any help

mackenzie