videos dont convert to computer

I recently bought a samsung WB600 camera and when I take videos and then go to transfer them over to my computer they wont transfer so I have to manually go into the computer and copy them to my video folder...then when I go to play them weather it be with my windows video player or any other program it wont play...when it comes to the pictures that I transfer over to my computer there are no problems with that....Do I need to convert the video files or am I missing something from my computer (windows xp) that is suppose to convert the files upon transfer.....

Please someone help me!!!

Try using any software that came with your camera , I have a Sony HD and must use the software because of of the way Sony writes the files.