I don't have a ton of information to back it up, but I imagine they record a ton...

		adamcanady on March 8, 2014 \| parent \| context \| favorite \| on: Malaysia Airlines Says It Lost Contact With Plane ... I don't have a ton of information to back it up, but I imagine they record a ton of data and it would require a pretty constant and huge data transmission from the airplane to get it all to the ground in near-real-time.