Canon T3i breaking video files into very short segments

[tmcdanel]

I know there is a 30 minute limit on my T3i but for some reason it is sort of randomly breaking video into very short segments. Like 80 meg - 400 meg files. I attached a screen shot. I vaguely remember encountering this when i had a poorly mounted video card, and maybe a good cleaning would fix it, but i don't think thats the problem.
(Ok feeling stupid here because i don't know how to use [img] so here it is:

http://bayimg.com/cAFKDAAfH

[Datadogie]

First question:   Is your card a class 10?

[tmcdanel]

Datadogie: First question:   Is your card a class 10?

Its a Sandisk 32 gig class 10. Its generally not been a problem before but i am reminded that i think i saw this once before and figured out that it was a bad mounting of the card. I guess another idea is to pull the card and clean the contacts. I wonder if i can get something in the camera to clean the camera contacts? It would make me a little nervous.