EOS rebel T3i: why is video recording suddenly shutting down after just a few seconds?

[JCH]

I have made dozens of movies with this card. Suddenlly the camera automatically shuts down video recording after just a few seconds. I've made dozens of movies with this card. Reformatted card. Still happens.

[MikeSowsun]

Sounds like a bad memory card. Have you tried another card? 

[JCH]

I will buy a new one tomorrow to see if it works. Won't hurt to have extra. Thanks for the tip.

[JCH]

You were right. Movies work with new card. Old card still woks for photographs. Thanks again.